###### Av(1243, 2431)
Generating Function
$$\displaystyle \frac{\left(-2 x^{4}+8 x^{3}-14 x^{2}+7 x -1\right) \sqrt{1-4 x}-2 x^{4}-16 x^{3}+24 x^{2}-9 x +1}{2 x^{2} \left(4 x -1\right) \left(x -1\right)^{2}}$$
Counting Sequence
1, 1, 2, 6, 22, 88, 363, 1507, 6241, 25721, 105485, 430767, 1752945, 7113095, 28797292, ...
Implicit Equation for the Generating Function
$$\displaystyle x^{2} \left(4 x -1\right)^{2} \left(x -1\right)^{4} F \left(x \right)^{2}+\left(4 x -1\right) \left(2 x^{4}+16 x^{3}-24 x^{2}+9 x -1\right) \left(x -1\right)^{2} F \! \left(x \right)+4 x^{7}-32 x^{6}+144 x^{5}-242 x^{4}+192 x^{3}-75 x^{2}+14 x -1 = 0$$
Recurrence
$$\displaystyle a \! \left(0\right) = 1$$
$$\displaystyle a \! \left(1\right) = 1$$
$$\displaystyle a \! \left(2\right) = 2$$
$$\displaystyle a \! \left(3\right) = 6$$
$$\displaystyle a \! \left(4\right) = 22$$
$$\displaystyle a \! \left(5\right) = 88$$
$$\displaystyle a \! \left(6\right) = 363$$
$$\displaystyle a \! \left(7\right) = 1507$$
$$\displaystyle a \! \left(n +7\right) = \frac{16 \left(2 n +1\right) a \! \left(n \right)}{9+n}+\frac{2 \left(217 n +708\right) a \! \left(2+n \right)}{9+n}-\frac{4 \left(44 n +81\right) a \! \left(n +1\right)}{9+n}-\frac{2 \left(261 n +1139\right) a \! \left(n +3\right)}{9+n}+\frac{2 \left(159 n +871\right) a \! \left(n +4\right)}{9+n}-\frac{\left(670+101 n \right) a \! \left(n +5\right)}{9+n}+\frac{\left(16 n +125\right) a \! \left(n +6\right)}{9+n}-\frac{32}{9+n}, \quad n \geq 8$$
Heatmap

To create this heatmap, we sampled 1,000,000 permutations of length 300 uniformly at random. The color of the point $$(i, j)$$ represents how many permutations have value $$j$$ at index $$i$$ (darker = more).

### This specification was found using the strategy pack "Requirement Placements Tracked Fusion" and has 46 rules.

Found on April 25, 2021.

Finding the specification took 3073 seconds.

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\begin{align*} F_{0}\! \left(x \right) &= F_{1}\! \left(x \right)+F_{6}\! \left(x \right)\\ F_{1}\! \left(x \right) &= F_{2}\! \left(x \right)+F_{3}\! \left(x \right)\\ F_{2}\! \left(x \right) &= 1\\ F_{3}\! \left(x \right) &= F_{4}\! \left(x \right)\\ F_{4}\! \left(x \right) &= F_{1}\! \left(x \right) F_{5}\! \left(x \right)\\ F_{5}\! \left(x \right) &= x\\ F_{6}\! \left(x \right) &= F_{7}\! \left(x \right)\\ F_{7}\! \left(x \right) &= F_{1}\! \left(x \right) F_{5}\! \left(x \right) F_{8}\! \left(x \right)\\ F_{8}\! \left(x \right) &= F_{9}\! \left(x \right)\\ F_{9}\! \left(x \right) &= F_{10}\! \left(x \right) F_{5}\! \left(x \right)\\ F_{10}\! \left(x \right) &= F_{11}\! \left(x \right)+F_{38}\! \left(x \right)\\ F_{11}\! \left(x \right) &= F_{12}\! \left(x \right)\\ F_{12}\! \left(x \right) &= F_{13}\! \left(x \right)+F_{22}\! \left(x \right)\\ F_{13}\! \left(x \right) &= F_{14}\! \left(x \right)+F_{20}\! \left(x \right)\\ F_{14}\! \left(x \right) &= F_{0}\! \left(x \right) F_{15}\! \left(x \right)\\ F_{15}\! \left(x \right) &= F_{16}\! \left(x \right)+F_{2}\! \left(x \right)\\ F_{16}\! \left(x \right) &= F_{17}\! \left(x \right) F_{5}\! \left(x \right)\\ F_{17}\! \left(x \right) &= F_{15}\! \left(x \right)+F_{18}\! \left(x \right)\\ F_{18}\! \left(x \right) &= F_{19}\! \left(x \right)\\ F_{19}\! \left(x \right) &= F_{15}\! \left(x \right) F_{17}\! \left(x \right) F_{5}\! \left(x \right)\\ F_{20}\! \left(x \right) &= F_{21}\! \left(x \right)\\ F_{21}\! \left(x \right) &= F_{12}\! \left(x \right) F_{15}\! \left(x \right) F_{5}\! \left(x \right)\\ F_{22}\! \left(x \right) &= F_{23}\! \left(x \right)\\ F_{23}\! \left(x \right) &= F_{24}\! \left(x \right) F_{5}\! \left(x \right)\\ F_{24}\! \left(x \right) &= F_{25}\! \left(x \right)+F_{26}\! \left(x \right)\\ F_{25}\! \left(x \right) &= F_{1}\! \left(x \right) F_{12}\! \left(x \right)\\ F_{26}\! \left(x \right) &= F_{27}\! \left(x \right)\\ F_{27}\! \left(x \right) &= F_{28}\! \left(x \right) F_{31}\! \left(x \right) F_{36}\! \left(x \right)\\ F_{28}\! \left(x \right) &= F_{29}\! \left(x \right)+F_{34}\! \left(x \right)\\ F_{29}\! \left(x \right) &= F_{30}\! \left(x \right)\\ F_{30}\! \left(x \right) &= F_{17}\! \left(x \right) F_{31}\! \left(x \right)\\ F_{31}\! \left(x \right) &= F_{2}\! \left(x \right)+F_{32}\! \left(x \right)\\ F_{32}\! \left(x \right) &= F_{33}\! \left(x \right)\\ F_{33}\! \left(x \right) &= F_{31}\! \left(x \right) F_{5}\! \left(x \right)\\ F_{34}\! \left(x \right) &= F_{35}\! \left(x \right)\\ F_{35}\! \left(x \right) &= F_{17}\! \left(x \right) F_{28}\! \left(x \right) F_{32}\! \left(x \right) F_{5}\! \left(x \right)\\ F_{36}\! \left(x \right) &= F_{37}\! \left(x \right)\\ F_{37}\! \left(x \right) &= F_{15}\! \left(x \right) F_{17}\! \left(x \right) F_{3}\! \left(x \right) F_{5}\! \left(x \right)\\ F_{38}\! \left(x \right) &= F_{39}\! \left(x \right)\\ F_{39}\! \left(x \right) &= F_{15}\! \left(x \right) F_{40}\! \left(x \right) F_{5}\! \left(x \right)\\ F_{40}\! \left(x \right) &= F_{41}\! \left(x \right)\\ F_{41}\! \left(x \right) &= F_{17} \left(x \right)^{2} F_{42}\! \left(x \right) F_{5}\! \left(x \right)\\ F_{42}\! \left(x \right) &= F_{43}\! \left(x \right)+F_{44}\! \left(x \right)\\ F_{43}\! \left(x \right) &= F_{28}\! \left(x \right) F_{31}\! \left(x \right)\\ F_{44}\! \left(x \right) &= F_{45}\! \left(x \right)\\ F_{45}\! \left(x \right) &= F_{40}\! \left(x \right) F_{5}\! \left(x \right)\\ \end{align*}

### This specification was found using the strategy pack "Insertion Col Placements Tracked Fusion" and has 243 rules.

Found on April 25, 2021.

Finding the specification took 101 seconds.

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\begin{align*} F_{0}\! \left(x \right) &= F_{1}\! \left(x \right)+F_{2}\! \left(x \right)\\ F_{1}\! \left(x \right) &= 1\\ F_{2}\! \left(x \right) &= F_{3}\! \left(x \right)\\ F_{3}\! \left(x \right) &= F_{4}\! \left(x \right) F_{5}\! \left(x \right)\\ F_{4}\! \left(x \right) &= x\\ F_{5}\! \left(x \right) &= F_{6}\! \left(x \right)+F_{9}\! \left(x \right)\\ F_{6}\! \left(x \right) &= F_{1}\! \left(x \right)+F_{7}\! \left(x \right)\\ F_{7}\! \left(x \right) &= F_{8}\! \left(x \right)\\ F_{8}\! \left(x \right) &= F_{6} \left(x \right)^{2} F_{4}\! \left(x \right)\\ F_{9}\! \left(x \right) &= F_{10}\! \left(x \right)+F_{2}\! \left(x \right)\\ F_{10}\! \left(x \right) &= F_{11}\! \left(x \right)+F_{12}\! \left(x \right)+F_{239}\! \left(x \right)\\ F_{11}\! \left(x \right) &= 0\\ F_{12}\! \left(x \right) &= F_{13}\! \left(x , 1\right)\\ F_{13}\! \left(x , y\right) &= F_{14}\! \left(x , y\right) F_{4}\! \left(x \right)\\ F_{14}\! \left(x , y\right) &= F_{15}\! \left(x , y\right)+F_{29}\! \left(x , y\right)\\ F_{15}\! \left(x , y\right) &= F_{16}\! \left(x , y\right)+F_{20}\! \left(x , y\right)\\ F_{16}\! \left(x , y\right) &= F_{17}\! \left(x , y\right)\\ F_{17}\! \left(x , y\right) &= F_{18}\! \left(x , y\right) F_{19}\! \left(x , y\right)\\ F_{18}\! \left(x , y\right) &= y x\\ F_{19}\! \left(x , y\right) &= F_{1}\! \left(x \right)+F_{16}\! \left(x , y\right)\\ F_{20}\! \left(x , y\right) &= F_{11}\! \left(x \right)+F_{21}\! \left(x , y\right)+F_{27}\! \left(x , y\right)\\ F_{21}\! \left(x , y\right) &= F_{22}\! \left(x , y\right) F_{4}\! \left(x \right)\\ F_{22}\! \left(x , y\right) &= F_{23}\! \left(x , y\right)+F_{26}\! \left(x , y\right)\\ F_{23}\! \left(x , y\right) &= F_{16}\! \left(x , y\right)+F_{24}\! \left(x , y\right)\\ F_{24}\! \left(x , y\right) &= F_{25}\! \left(x , y\right)\\ F_{25}\! \left(x , y\right) &= F_{23}\! \left(x , y\right) F_{4}\! \left(x \right)\\ F_{26}\! \left(x , y\right) &= -\frac{y \left(F_{20}\! \left(x , 1\right)-F_{20}\! \left(x , y\right)\right)}{-1+y}\\ F_{27}\! \left(x , y\right) &= F_{18}\! \left(x , y\right) F_{28}\! \left(x , y\right)\\ F_{28}\! \left(x , y\right) &= F_{20}\! \left(x , y\right)+F_{7}\! \left(x \right)\\ F_{29}\! \left(x , y\right) &= F_{30}\! \left(x , y\right)+F_{67}\! \left(x , y\right)\\ F_{30}\! \left(x , y\right) &= F_{11}\! \left(x \right)+F_{31}\! \left(x , y\right)+F_{65}\! \left(x , y\right)\\ F_{31}\! \left(x , y\right) &= F_{32}\! \left(x , y\right) F_{4}\! \left(x \right)\\ F_{32}\! \left(x , y\right) &= F_{33}\! \left(x , y\right)+F_{35}\! \left(x , y\right)\\ F_{33}\! \left(x , y\right) &= F_{34}\! \left(x , y\right)\\ F_{34}\! \left(x , y\right) &= F_{16}\! \left(x , y\right) F_{6}\! \left(x \right)\\ F_{35}\! \left(x , y\right) &= F_{30}\! \left(x , y\right)+F_{36}\! \left(x , y\right)\\ F_{36}\! \left(x , y\right) &= F_{37}\! \left(x , y\right)\\ F_{37}\! \left(x , y\right) &= F_{38}\! \left(x , y\right) F_{4}\! \left(x \right)\\ F_{38}\! \left(x , y\right) &= F_{39}\! \left(x , y\right)+F_{56}\! \left(x , y\right)\\ F_{39}\! \left(x , y\right) &= F_{30}\! \left(x , y\right)+F_{40}\! \left(x , y\right)\\ F_{40}\! \left(x , y\right) &= F_{41}\! \left(x , y\right)\\ F_{41}\! \left(x , y\right) &= 2 F_{11}\! \left(x \right)+F_{42}\! \left(x , y\right)+F_{46}\! \left(x , y\right)\\ F_{42}\! \left(x , y\right) &= F_{4}\! \left(x \right) F_{43}\! \left(x , y\right)\\ F_{43}\! \left(x , y\right) &= F_{41}\! \left(x , y\right)+F_{44}\! \left(x , y\right)\\ F_{44}\! \left(x , y\right) &= F_{45}\! \left(x , y\right)\\ F_{45}\! \left(x , y\right) &= F_{16}\! \left(x , y\right) F_{7}\! \left(x \right)\\ F_{46}\! \left(x , y\right) &= F_{47}\! \left(x , y\right)\\ F_{47}\! \left(x , y\right) &= F_{18}\! \left(x , y\right) F_{48}\! \left(x , y\right) F_{7}\! \left(x \right)\\ F_{48}\! \left(x , y\right) &= F_{49}\! \left(x \right)+F_{52}\! \left(x , y\right)\\ F_{49}\! \left(x \right) &= F_{50}\! \left(x \right)\\ F_{50}\! \left(x \right) &= F_{4}\! \left(x \right) F_{51}\! \left(x \right)\\ F_{51}\! \left(x \right) &= F_{1}\! \left(x \right)+F_{49}\! \left(x \right)\\ F_{52}\! \left(x , y\right) &= F_{11}\! \left(x \right)+F_{53}\! \left(x , y\right)+F_{55}\! \left(x , y\right)\\ F_{53}\! \left(x , y\right) &= F_{4}\! \left(x \right) F_{54}\! \left(x , y\right)\\ F_{54}\! \left(x , y\right) &= F_{16}\! \left(x , y\right)+F_{52}\! \left(x , y\right)\\ F_{55}\! \left(x , y\right) &= F_{18}\! \left(x , y\right) F_{48}\! \left(x , y\right)\\ F_{56}\! \left(x , y\right) &= F_{36}\! \left(x , y\right)+F_{57}\! \left(x , y\right)\\ F_{57}\! \left(x , y\right) &= 3 F_{11}\! \left(x \right)+F_{58}\! \left(x , y\right)+F_{63}\! \left(x , y\right)\\ F_{58}\! \left(x , y\right) &= F_{4}\! \left(x \right) F_{59}\! \left(x , y\right)\\ F_{59}\! \left(x , y\right) &= F_{60}\! \left(x , y\right)+F_{62}\! \left(x , y\right)\\ F_{60}\! \left(x , y\right) &= F_{61}\! \left(x , y\right)\\ F_{61}\! \left(x , y\right) &= F_{7} \left(x \right)^{2} F_{16}\! \left(x , y\right)\\ F_{62}\! \left(x , y\right) &= F_{57}\! \left(x , y\right)\\ F_{63}\! \left(x , y\right) &= F_{64}\! \left(x , y\right)\\ F_{64}\! \left(x , y\right) &= F_{7} \left(x \right)^{2} F_{18}\! \left(x , y\right) F_{48}\! \left(x , y\right)\\ F_{65}\! \left(x , y\right) &= F_{18}\! \left(x , y\right) F_{66}\! \left(x , y\right)\\ F_{66}\! \left(x , y\right) &= F_{2}\! \left(x \right)+F_{30}\! \left(x , y\right)\\ F_{67}\! \left(x , y\right) &= F_{11}\! \left(x \right)+F_{236}\! \left(x , y\right)+F_{238}\! \left(x , y\right)+F_{68}\! \left(x , y\right)\\ F_{68}\! \left(x , y\right) &= F_{4}\! \left(x \right) F_{69}\! \left(x , y\right)\\ F_{69}\! \left(x , y\right) &= F_{70}\! \left(x , y\right)+F_{72}\! \left(x , y\right)\\ F_{70}\! \left(x , y\right) &= F_{71}\! \left(x , y\right)\\ F_{71}\! \left(x , y\right) &= F_{20}\! \left(x , y\right) F_{6}\! \left(x \right)\\ F_{72}\! \left(x , y\right) &= F_{220}\! \left(x , y\right)+F_{73}\! \left(x , y\right)\\ F_{73}\! \left(x , y\right) &= F_{11}\! \left(x \right)+F_{195}\! \left(x , y\right)+F_{205}\! \left(x , y\right)+F_{74}\! \left(x , y\right)\\ F_{74}\! \left(x , y\right) &= F_{4}\! \left(x \right) F_{75}\! \left(x , y\right)\\ F_{75}\! \left(x , y\right) &= F_{76}\! \left(x , y\right)+F_{90}\! \left(x , y\right)\\ F_{76}\! \left(x , y\right) &= -\frac{F_{77}\! \left(x , 1\right) y -F_{77}\! \left(x , y\right)}{-1+y}\\ F_{77}\! \left(x , y\right) &= F_{78}\! \left(x , y\right)+F_{80}\! \left(x , y\right)\\ F_{78}\! \left(x , y\right) &= F_{79}\! \left(x , y\right)\\ F_{79}\! \left(x , y\right) &= F_{16}\! \left(x , y\right) F_{18}\! \left(x , y\right)\\ F_{80}\! \left(x , y\right) &= F_{11}\! \left(x \right)+F_{81}\! \left(x , y\right)+F_{83}\! \left(x , y\right)\\ F_{81}\! \left(x , y\right) &= F_{82}\! \left(x , y\right)\\ F_{82}\! \left(x , y\right) &= F_{4}\! \left(x \right) F_{77}\! \left(x , y\right)\\ F_{83}\! \left(x , y\right) &= F_{18}\! \left(x , y\right) F_{84}\! \left(x , y\right)\\ F_{84}\! \left(x , y\right) &= F_{11}\! \left(x \right)+F_{85}\! \left(x , y\right)+F_{88}\! \left(x , y\right)\\ F_{85}\! \left(x , y\right) &= F_{86}\! \left(x , y\right)\\ F_{86}\! \left(x , y\right) &= F_{4}\! \left(x \right) F_{87}\! \left(x , y\right)\\ F_{87}\! \left(x , y\right) &= F_{16}\! \left(x , y\right)+F_{84}\! \left(x , y\right)\\ F_{88}\! \left(x , y\right) &= F_{18}\! \left(x , y\right) F_{89}\! \left(x , y\right)\\ F_{89}\! \left(x , y\right) &= F_{7}\! \left(x \right)+F_{84}\! \left(x , y\right)\\ F_{90}\! \left(x , y\right) &= -\frac{F_{91}\! \left(x , 1\right) y -F_{91}\! \left(x , y\right)}{-1+y}\\ F_{91}\! \left(x , y\right) &= F_{92}\! \left(x , y\right)+F_{96}\! \left(x , y\right)\\ F_{92}\! \left(x , y\right) &= F_{11}\! \left(x \right)+F_{93}\! \left(x , y\right)+F_{95}\! \left(x , y\right)\\ F_{93}\! \left(x , y\right) &= F_{4}\! \left(x \right) F_{94}\! \left(x , y\right)\\ F_{94}\! \left(x , y\right) &= F_{77}\! \left(x , y\right)+F_{91}\! \left(x , y\right)\\ F_{95}\! \left(x , y\right) &= F_{18}\! \left(x , y\right) F_{52}\! \left(x , y\right)\\ F_{96}\! \left(x , y\right) &= F_{11}\! \left(x \right)+F_{118}\! \left(x , y\right)+F_{120}\! \left(x , y\right)+F_{97}\! \left(x , y\right)\\ F_{97}\! \left(x , y\right) &= F_{4}\! \left(x \right) F_{98}\! \left(x , y\right)\\ F_{98}\! \left(x , y\right) &= F_{101}\! \left(x , y\right)+F_{99}\! \left(x , y\right)\\ F_{99}\! \left(x , y\right) &= F_{100}\! \left(x , y\right)\\ F_{100}\! \left(x , y\right) &= F_{6}\! \left(x \right) F_{7}\! \left(x \right) F_{78}\! \left(x , y\right)\\ F_{101}\! \left(x , y\right) &= F_{102}\! \left(x , y\right)+F_{110}\! \left(x , y\right)\\ F_{102}\! \left(x , y\right) &= F_{103}\! \left(x , y\right)\\ F_{103}\! \left(x , y\right) &= 2 F_{11}\! \left(x \right)+F_{104}\! \left(x , y\right)+F_{108}\! \left(x , y\right)\\ F_{104}\! \left(x , y\right) &= F_{105}\! \left(x , y\right) F_{4}\! \left(x \right)\\ F_{105}\! \left(x , y\right) &= F_{103}\! \left(x , y\right)+F_{106}\! \left(x , y\right)\\ F_{106}\! \left(x , y\right) &= F_{107}\! \left(x , y\right)\\ F_{107}\! \left(x , y\right) &= F_{7}\! \left(x \right) F_{78}\! \left(x , y\right)\\ F_{108}\! \left(x , y\right) &= F_{109}\! \left(x , y\right)\\ F_{109}\! \left(x , y\right) &= F_{18}\! \left(x , y\right) F_{52}\! \left(x , y\right) F_{7}\! \left(x \right)\\ F_{110}\! \left(x , y\right) &= 3 F_{11}\! \left(x \right)+F_{111}\! \left(x , y\right)+F_{116}\! \left(x , y\right)\\ F_{111}\! \left(x , y\right) &= F_{112}\! \left(x , y\right) F_{4}\! \left(x \right)\\ F_{112}\! \left(x , y\right) &= F_{113}\! \left(x , y\right)+F_{115}\! \left(x , y\right)\\ F_{113}\! \left(x , y\right) &= F_{114}\! \left(x , y\right)\\ F_{114}\! \left(x , y\right) &= F_{7} \left(x \right)^{2} F_{78}\! \left(x , y\right)\\ F_{115}\! \left(x , y\right) &= F_{110}\! \left(x , y\right)\\ F_{116}\! \left(x , y\right) &= F_{117}\! \left(x , y\right)\\ F_{117}\! \left(x , y\right) &= F_{7} \left(x \right)^{2} F_{18}\! \left(x , y\right) F_{52}\! \left(x , y\right)\\ F_{118}\! \left(x , y\right) &= F_{119}\! \left(x , y\right)\\ F_{119}\! \left(x , y\right) &= F_{4}\! \left(x \right) F_{91}\! \left(x , y\right)\\ F_{120}\! \left(x , y\right) &= F_{121}\! \left(x , y\right) F_{18}\! \left(x , y\right)\\ F_{121}\! \left(x , y\right) &= F_{11}\! \left(x \right)+F_{122}\! \left(x , y\right)+F_{127}\! \left(x , y\right)+F_{130}\! \left(x , y\right)\\ F_{122}\! \left(x , y\right) &= F_{123}\! \left(x , y\right) F_{4}\! \left(x \right)\\ F_{123}\! \left(x , y\right) &= F_{124}\! \left(x , y\right)+F_{126}\! \left(x , y\right)\\ F_{124}\! \left(x , y\right) &= F_{125}\! \left(x , y\right)\\ F_{125}\! \left(x , y\right) &= F_{16}\! \left(x , y\right) F_{6}\! \left(x \right) F_{7}\! \left(x \right)\\ F_{126}\! \left(x , y\right) &= F_{40}\! \left(x , y\right)+F_{57}\! \left(x , y\right)\\ F_{127}\! \left(x , y\right) &= F_{128}\! \left(x , y\right)\\ F_{128}\! \left(x , y\right) &= F_{129}\! \left(x , y\right) F_{4}\! \left(x \right)\\ F_{129}\! \left(x , y\right) &= F_{121}\! \left(x , y\right)+F_{30}\! \left(x , y\right)\\ F_{130}\! \left(x , y\right) &= F_{131}\! \left(x , y\right) F_{18}\! \left(x , y\right)\\ F_{131}\! \left(x , y\right) &= F_{121}\! \left(x , y\right)+F_{132}\! \left(x \right)\\ F_{132}\! \left(x \right) &= F_{11}\! \left(x \right)+F_{133}\! \left(x \right)+F_{188}\! \left(x \right)\\ F_{133}\! \left(x \right) &= F_{134}\! \left(x \right) F_{4}\! \left(x \right)\\ F_{134}\! \left(x \right) &= F_{135}\! \left(x \right)+F_{137}\! \left(x \right)\\ F_{135}\! \left(x \right) &= F_{136}\! \left(x \right)\\ F_{136}\! \left(x \right) &= F_{6}\! \left(x \right) F_{7}\! \left(x \right)\\ F_{137}\! \left(x \right) &= F_{138}\! \left(x \right)+F_{175}\! \left(x \right)\\ F_{138}\! \left(x \right) &= F_{11}\! \left(x \right)+F_{139}\! \left(x \right)+F_{142}\! \left(x \right)\\ F_{139}\! \left(x \right) &= F_{140}\! \left(x \right) F_{4}\! \left(x \right)\\ F_{140}\! \left(x \right) &= F_{141}\! \left(x , 1\right)\\ F_{141}\! \left(x , y\right) &= F_{129}\! \left(x , y\right)+F_{87}\! \left(x , y\right)\\ F_{142}\! \left(x \right) &= F_{143}\! \left(x \right) F_{4}\! \left(x \right)\\ F_{143}\! \left(x \right) &= F_{144}\! \left(x \right)+F_{155}\! \left(x \right)\\ F_{144}\! \left(x \right) &= F_{145}\! \left(x \right)+F_{49}\! \left(x \right)\\ F_{145}\! \left(x \right) &= F_{11}\! \left(x \right)+F_{142}\! \left(x \right)+F_{146}\! \left(x \right)\\ F_{146}\! \left(x \right) &= F_{147}\! \left(x \right) F_{4}\! \left(x \right)\\ F_{147}\! \left(x \right) &= F_{148}\! \left(x \right)+F_{151}\! \left(x \right)\\ F_{148}\! \left(x \right) &= F_{149}\! \left(x \right)\\ F_{149}\! \left(x \right) &= F_{150}\! \left(x \right) F_{4}\! \left(x \right)\\ F_{150}\! \left(x \right) &= F_{1}\! \left(x \right)+F_{148}\! \left(x \right)\\ F_{151}\! \left(x \right) &= F_{11}\! \left(x \right)+F_{152}\! \left(x \right)+F_{153}\! \left(x \right)\\ F_{152}\! \left(x \right) &= F_{147}\! \left(x \right) F_{4}\! \left(x \right)\\ F_{153}\! \left(x \right) &= F_{154}\! \left(x \right) F_{4}\! \left(x \right)\\ F_{154}\! \left(x \right) &= F_{151}\! \left(x \right)+F_{49}\! \left(x \right)\\ F_{155}\! \left(x \right) &= F_{145}\! \left(x \right)+F_{156}\! \left(x \right)\\ F_{156}\! \left(x \right) &= F_{157}\! \left(x \right)\\ F_{157}\! \left(x \right) &= 2 F_{11}\! \left(x \right)+F_{158}\! \left(x \right)+F_{163}\! \left(x \right)\\ F_{158}\! \left(x \right) &= F_{159}\! \left(x \right) F_{4}\! \left(x \right)\\ F_{159}\! \left(x \right) &= F_{160}\! \left(x \right)+F_{162}\! \left(x \right)\\ F_{160}\! \left(x \right) &= F_{161}\! \left(x \right)\\ F_{161}\! \left(x \right) &= F_{7} \left(x \right)^{2}\\ F_{162}\! \left(x \right) &= F_{157}\! \left(x \right)\\ F_{163}\! \left(x \right) &= F_{164}\! \left(x \right)\\ F_{164}\! \left(x \right) &= F_{165}\! \left(x \right) F_{4}\! \left(x \right) F_{7}\! \left(x \right)\\ F_{165}\! \left(x \right) &= F_{154}\! \left(x \right)+F_{166}\! \left(x \right)\\ F_{166}\! \left(x \right) &= F_{167}\! \left(x , 1\right)\\ F_{167}\! \left(x , y\right) &= F_{168}\! \left(x \right)+F_{170}\! \left(x , y\right)\\ F_{168}\! \left(x \right) &= F_{169}\! \left(x \right)\\ F_{169}\! \left(x \right) &= F_{49}\! \left(x \right) F_{7}\! \left(x \right)\\ F_{170}\! \left(x , y\right) &= 2 F_{11}\! \left(x \right)+F_{171}\! \left(x , y\right)+F_{174}\! \left(x , y\right)\\ F_{171}\! \left(x , y\right) &= F_{172}\! \left(x , y\right)\\ F_{172}\! \left(x , y\right) &= F_{173}\! \left(x , y\right) F_{4}\! \left(x \right) F_{6}\! \left(x \right)\\ F_{173}\! \left(x , y\right) &= F_{170}\! \left(x , y\right)+F_{52}\! \left(x , y\right)\\ F_{174}\! \left(x , y\right) &= F_{167}\! \left(x , y\right) F_{18}\! \left(x , y\right)\\ F_{175}\! \left(x \right) &= F_{176}\! \left(x \right)\\ F_{176}\! \left(x \right) &= F_{177}\! \left(x \right) F_{4}\! \left(x \right)\\ F_{177}\! \left(x \right) &= F_{178}\! \left(x \right)+F_{179}\! \left(x \right)\\ F_{178}\! \left(x \right) &= F_{138}\! \left(x \right)+F_{157}\! \left(x \right)\\ F_{179}\! \left(x \right) &= F_{175}\! \left(x \right)+F_{180}\! \left(x \right)\\ F_{180}\! \left(x \right) &= 3 F_{11}\! \left(x \right)+F_{181}\! \left(x \right)+F_{186}\! \left(x \right)\\ F_{181}\! \left(x \right) &= F_{182}\! \left(x \right) F_{4}\! \left(x \right)\\ F_{182}\! \left(x \right) &= F_{183}\! \left(x \right)+F_{185}\! \left(x \right)\\ F_{183}\! \left(x \right) &= F_{184}\! \left(x \right)\\ F_{184}\! \left(x \right) &= F_{7} \left(x \right)^{3}\\ F_{185}\! \left(x \right) &= F_{180}\! \left(x \right)\\ F_{186}\! \left(x \right) &= F_{187}\! \left(x \right)\\ F_{187}\! \left(x \right) &= F_{7} \left(x \right)^{2} F_{165}\! \left(x \right) F_{4}\! \left(x \right)\\ F_{188}\! \left(x \right) &= F_{189}\! \left(x \right) F_{4}\! \left(x \right)\\ F_{189}\! \left(x \right) &= F_{190}\! \left(x \right)+F_{193}\! \left(x \right)\\ F_{190}\! \left(x \right) &= F_{191}\! \left(x \right)+F_{2}\! \left(x \right)\\ F_{191}\! \left(x \right) &= F_{11}\! \left(x \right)+F_{139}\! \left(x \right)+F_{192}\! \left(x \right)\\ F_{192}\! \left(x \right) &= F_{154}\! \left(x \right) F_{4}\! \left(x \right)\\ F_{193}\! \left(x \right) &= F_{194}\! \left(x , 1\right)\\ F_{194}\! \left(x , y\right) &= F_{132}\! \left(x \right)+F_{67}\! \left(x , y\right)\\ F_{195}\! \left(x , y\right) &= F_{196}\! \left(x , y\right) F_{4}\! \left(x \right)\\ F_{196}\! \left(x , y\right) &= F_{197}\! \left(x , y\right)+F_{207}\! \left(x , y\right)\\ F_{197}\! \left(x , y\right) &= F_{198}\! \left(x , y\right)+F_{52}\! \left(x , y\right)\\ F_{198}\! \left(x , y\right) &= F_{11}\! \left(x \right)+F_{195}\! \left(x , y\right)+F_{199}\! \left(x , y\right)+F_{205}\! \left(x , y\right)\\ F_{199}\! \left(x , y\right) &= -\frac{F_{200}\! \left(x , 1\right) y -F_{200}\! \left(x , y\right)}{-1+y}\\ F_{200}\! \left(x , y\right) &= F_{201}\! \left(x , y\right) F_{4}\! \left(x \right)\\ F_{201}\! \left(x , y\right) &= F_{202}\! \left(x , y\right)+F_{78}\! \left(x , y\right)\\ F_{202}\! \left(x , y\right) &= F_{11}\! \left(x \right)+F_{203}\! \left(x , y\right)+F_{204}\! \left(x , y\right)\\ F_{203}\! \left(x , y\right) &= F_{201}\! \left(x , y\right) F_{4}\! \left(x \right)\\ F_{204}\! \left(x , y\right) &= F_{18}\! \left(x , y\right) F_{52}\! \left(x , y\right)\\ F_{205}\! \left(x , y\right) &= F_{18}\! \left(x , y\right) F_{206}\! \left(x , y\right)\\ F_{206}\! \left(x , y\right) &= F_{145}\! \left(x \right)+F_{198}\! \left(x , y\right)\\ F_{207}\! \left(x , y\right) &= F_{208}\! \left(x , y\right)+F_{41}\! \left(x , y\right)\\ F_{208}\! \left(x , y\right) &= F_{209}\! \left(x , y\right)\\ F_{209}\! \left(x , y\right) &= 2 F_{11}\! \left(x \right)+F_{210}\! \left(x , y\right)+F_{215}\! \left(x , y\right)+F_{218}\! \left(x , y\right)\\ F_{210}\! \left(x , y\right) &= F_{211}\! \left(x , y\right) F_{4}\! \left(x \right)\\ F_{211}\! \left(x , y\right) &= F_{212}\! \left(x , y\right)+F_{214}\! \left(x , y\right)\\ F_{212}\! \left(x , y\right) &= F_{213}\! \left(x , y\right)\\ F_{213}\! \left(x , y\right) &= F_{20}\! \left(x , y\right) F_{7}\! \left(x \right)\\ F_{214}\! \left(x , y\right) &= F_{209}\! \left(x , y\right)\\ F_{215}\! \left(x , y\right) &= F_{216}\! \left(x , y\right)\\ F_{216}\! \left(x , y\right) &= -\frac{y \left(F_{217}\! \left(x , 1\right)-F_{217}\! \left(x , y\right)\right)}{-1+y}\\ F_{217}\! \left(x , y\right) &= F_{173}\! \left(x , y\right) F_{4}\! \left(x \right) F_{7}\! \left(x \right)\\ F_{218}\! \left(x , y\right) &= F_{219}\! \left(x , y\right)\\ F_{219}\! \left(x , y\right) &= F_{167}\! \left(x , y\right) F_{18}\! \left(x , y\right) F_{7}\! \left(x \right)\\ F_{220}\! \left(x , y\right) &= F_{221}\! \left(x , y\right)\\ F_{221}\! \left(x , y\right) &= F_{222}\! \left(x , y\right) F_{4}\! \left(x \right)\\ F_{222}\! \left(x , y\right) &= F_{223}\! \left(x , y\right)+F_{224}\! \left(x , y\right)\\ F_{223}\! \left(x , y\right) &= F_{209}\! \left(x , y\right)+F_{73}\! \left(x , y\right)\\ F_{224}\! \left(x , y\right) &= F_{220}\! \left(x , y\right)+F_{225}\! \left(x , y\right)\\ F_{225}\! \left(x , y\right) &= 3 F_{11}\! \left(x \right)+F_{226}\! \left(x , y\right)+F_{231}\! \left(x , y\right)+F_{234}\! \left(x , y\right)\\ F_{226}\! \left(x , y\right) &= F_{227}\! \left(x , y\right) F_{4}\! \left(x \right)\\ F_{227}\! \left(x , y\right) &= F_{228}\! \left(x , y\right)+F_{230}\! \left(x , y\right)\\ F_{228}\! \left(x , y\right) &= F_{229}\! \left(x , y\right)\\ F_{229}\! \left(x , y\right) &= F_{7} \left(x \right)^{2} F_{20}\! \left(x , y\right)\\ F_{230}\! \left(x , y\right) &= F_{225}\! \left(x , y\right)\\ F_{231}\! \left(x , y\right) &= F_{232}\! \left(x , y\right)\\ F_{232}\! \left(x , y\right) &= -\frac{y \left(F_{233}\! \left(x , 1\right)-F_{233}\! \left(x , y\right)\right)}{-1+y}\\ F_{233}\! \left(x , y\right) &= F_{7} \left(x \right)^{2} F_{173}\! \left(x , y\right) F_{4}\! \left(x \right)\\ F_{234}\! \left(x , y\right) &= F_{235}\! \left(x , y\right)\\ F_{235}\! \left(x , y\right) &= F_{7} \left(x \right)^{2} F_{167}\! \left(x , y\right) F_{18}\! \left(x , y\right)\\ F_{236}\! \left(x , y\right) &= -\frac{y \left(F_{237}\! \left(x , 1\right)-F_{237}\! \left(x , y\right)\right)}{-1+y}\\ F_{237}\! \left(x , y\right) &= F_{29}\! \left(x , y\right) F_{4}\! \left(x \right)\\ F_{238}\! \left(x , y\right) &= F_{18}\! \left(x , y\right) F_{194}\! \left(x , y\right)\\ F_{239}\! \left(x \right) &= F_{240}\! \left(x \right) F_{4}\! \left(x \right)\\ F_{240}\! \left(x \right) &= F_{241}\! \left(x \right)+F_{242}\! \left(x \right)\\ F_{241}\! \left(x \right) &= F_{138}\! \left(x \right)+F_{2}\! \left(x \right)\\ F_{242}\! \left(x \right) &= F_{10}\! \left(x \right)+F_{175}\! \left(x \right)\\ \end{align*}

### This specification was found using the strategy pack "Insertion Point Placements Tracked Fusion Req Corrob" and has 128 rules.

Found on January 17, 2022.

Finding the specification took 148 seconds.

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\begin{align*} F_{0}\! \left(x \right) &= F_{1}\! \left(x \right)+F_{2}\! \left(x \right)\\ F_{1}\! \left(x \right) &= 1\\ F_{2}\! \left(x \right) &= F_{3}\! \left(x \right)\\ F_{3}\! \left(x \right) &= F_{15}\! \left(x \right) F_{4}\! \left(x \right)\\ F_{4}\! \left(x \right) &= F_{0}\! \left(x \right)+F_{5}\! \left(x \right)\\ F_{5}\! \left(x \right) &= F_{2}\! \left(x \right)+F_{6}\! \left(x \right)\\ F_{6}\! \left(x \right) &= F_{7}\! \left(x \right)\\ F_{7}\! \left(x \right) &= F_{15}\! \left(x \right) F_{8}\! \left(x \right)\\ F_{8}\! \left(x \right) &= F_{37}\! \left(x \right)+F_{9}\! \left(x \right)\\ F_{9}\! \left(x \right) &= F_{10}\! \left(x \right)\\ F_{10}\! \left(x \right) &= F_{11}\! \left(x \right)+F_{16}\! \left(x \right)\\ F_{11}\! \left(x \right) &= F_{12}\! \left(x \right) F_{2}\! \left(x \right)\\ F_{12}\! \left(x \right) &= F_{1}\! \left(x \right)+F_{13}\! \left(x \right)\\ F_{13}\! \left(x \right) &= F_{14}\! \left(x \right)\\ F_{14}\! \left(x \right) &= F_{12}\! \left(x \right) F_{15}\! \left(x \right)\\ F_{15}\! \left(x \right) &= x\\ F_{16}\! \left(x \right) &= F_{17}\! \left(x \right)+F_{27}\! \left(x \right)\\ F_{17}\! \left(x \right) &= F_{18}\! \left(x \right) F_{19}\! \left(x \right)\\ F_{18}\! \left(x \right) &= F_{1}\! \left(x \right)+F_{19}\! \left(x \right)\\ F_{19}\! \left(x \right) &= F_{20}\! \left(x \right)\\ F_{20}\! \left(x \right) &= F_{15}\! \left(x \right) F_{21}\! \left(x \right)\\ F_{21}\! \left(x \right) &= F_{12}\! \left(x \right)+F_{22}\! \left(x \right)\\ F_{22}\! \left(x \right) &= F_{19}\! \left(x \right)+F_{23}\! \left(x \right)\\ F_{23}\! \left(x \right) &= F_{24}\! \left(x \right)\\ F_{24}\! \left(x \right) &= F_{15}\! \left(x \right) F_{25}\! \left(x \right)\\ F_{25}\! \left(x \right) &= F_{22}\! \left(x \right)+F_{26}\! \left(x \right)\\ F_{26}\! \left(x \right) &= F_{19}\! \left(x \right) F_{21}\! \left(x \right)\\ F_{27}\! \left(x \right) &= F_{12}\! \left(x \right) F_{28}\! \left(x \right)\\ F_{28}\! \left(x \right) &= F_{29}\! \left(x \right)+F_{33}\! \left(x \right)\\ F_{29}\! \left(x \right) &= F_{19}\! \left(x \right) F_{30}\! \left(x \right)\\ F_{30}\! \left(x \right) &= F_{31}\! \left(x \right)\\ F_{31}\! \left(x \right) &= F_{15}\! \left(x \right) F_{32}\! \left(x \right)\\ F_{32}\! \left(x \right) &= F_{1}\! \left(x \right)+F_{30}\! \left(x \right)\\ F_{33}\! \left(x \right) &= F_{13}\! \left(x \right) F_{34}\! \left(x \right)\\ F_{34}\! \left(x \right) &= F_{35}\! \left(x \right)\\ F_{35}\! \left(x \right) &= F_{15}\! \left(x \right) F_{36}\! \left(x \right)\\ F_{36}\! \left(x \right) &= F_{34}\! \left(x \right)+F_{5}\! \left(x \right)\\ F_{37}\! \left(x \right) &= F_{38}\! \left(x \right)+F_{67}\! \left(x \right)\\ F_{38}\! \left(x \right) &= F_{39}\! \left(x \right)+F_{60}\! \left(x \right)\\ F_{39}\! \left(x \right) &= F_{40}\! \left(x \right)\\ F_{40}\! \left(x \right) &= F_{15}\! \left(x \right) F_{41}\! \left(x \right)\\ F_{41}\! \left(x \right) &= F_{42}\! \left(x \right)+F_{45}\! \left(x \right)\\ F_{42}\! \left(x \right) &= F_{39}\! \left(x \right)+F_{43}\! \left(x \right)\\ F_{43}\! \left(x \right) &= F_{19}\! \left(x \right)+F_{44}\! \left(x \right)\\ F_{44}\! \left(x \right) &= F_{12}\! \left(x \right) F_{19}\! \left(x \right)\\ F_{45}\! \left(x \right) &= F_{46}\! \left(x \right)+F_{59}\! \left(x \right)\\ F_{46}\! \left(x \right) &= F_{39}\! \left(x \right)+F_{47}\! \left(x \right)\\ F_{47}\! \left(x \right) &= F_{19}\! \left(x \right) F_{48}\! \left(x \right)\\ F_{48}\! \left(x \right) &= F_{19}\! \left(x \right)+F_{49}\! \left(x \right)\\ F_{49}\! \left(x \right) &= F_{50}\! \left(x \right)\\ F_{50}\! \left(x \right) &= F_{15}\! \left(x \right) F_{51}\! \left(x \right)\\ F_{51}\! \left(x \right) &= F_{52}\! \left(x \right)+F_{55}\! \left(x \right)\\ F_{52}\! \left(x \right) &= F_{49}\! \left(x \right)+F_{53}\! \left(x \right)\\ F_{53}\! \left(x \right) &= F_{13}\! \left(x \right)+F_{54}\! \left(x \right)\\ F_{54}\! \left(x \right) &= F_{12}\! \left(x \right) F_{13}\! \left(x \right)\\ F_{55}\! \left(x \right) &= F_{56}\! \left(x \right)+F_{58}\! \left(x \right)\\ F_{56}\! \left(x \right) &= F_{49}\! \left(x \right)+F_{57}\! \left(x \right)\\ F_{57}\! \left(x \right) &= F_{13}\! \left(x \right) F_{48}\! \left(x \right)\\ F_{58}\! \left(x \right) &= F_{19}\! \left(x \right) F_{49}\! \left(x \right)\\ F_{59}\! \left(x \right) &= F_{19}\! \left(x \right) F_{39}\! \left(x \right)\\ F_{60}\! \left(x \right) &= F_{61}\! \left(x \right)+F_{62}\! \left(x \right)\\ F_{61}\! \left(x \right) &= F_{19}\! \left(x \right) F_{2}\! \left(x \right)\\ F_{62}\! \left(x \right) &= F_{63}\! \left(x \right)\\ F_{63}\! \left(x \right) &= F_{15}\! \left(x \right) F_{64}\! \left(x \right)\\ F_{64}\! \left(x \right) &= F_{65}\! \left(x \right)+F_{66}\! \left(x \right)\\ F_{65}\! \left(x \right) &= F_{39}\! \left(x \right)+F_{62}\! \left(x \right)\\ F_{66}\! \left(x \right) &= F_{49}\! \left(x \right) F_{5}\! \left(x \right)\\ F_{67}\! \left(x \right) &= F_{119}\! \left(x \right)+F_{68}\! \left(x \right)\\ F_{68}\! \left(x \right) &= F_{69}\! \left(x \right)\\ F_{69}\! \left(x \right) &= F_{15}\! \left(x \right) F_{70}\! \left(x \right)\\ F_{70}\! \left(x \right) &= F_{71}\! \left(x \right)+F_{79}\! \left(x \right)\\ F_{71}\! \left(x \right) &= F_{72}\! \left(x \right)\\ F_{72}\! \left(x \right) &= F_{18}\! \left(x \right) F_{19}\! \left(x \right) F_{73}\! \left(x \right)\\ F_{73}\! \left(x \right) &= F_{74}\! \left(x , 1\right)\\ F_{74}\! \left(x , y\right) &= -\frac{y \left(F_{75}\! \left(x , 1\right)-F_{75}\! \left(x , y\right)\right)}{-1+y}\\ F_{75}\! \left(x , y\right) &= F_{76}\! \left(x , y\right)\\ F_{76}\! \left(x , y\right) &= F_{77}\! \left(x , y\right)^{2} F_{78}\! \left(x , y\right)\\ F_{77}\! \left(x , y\right) &= F_{1}\! \left(x \right)+F_{75}\! \left(x , y\right)\\ F_{78}\! \left(x , y\right) &= y x\\ F_{79}\! \left(x \right) &= F_{80}\! \left(x \right)+F_{84}\! \left(x \right)\\ F_{80}\! \left(x \right) &= F_{81}\! \left(x \right)+F_{82}\! \left(x \right)\\ F_{81}\! \left(x \right) &= F_{39}\! \left(x \right)+F_{68}\! \left(x \right)\\ F_{82}\! \left(x \right) &= F_{83}\! \left(x \right)\\ F_{83}\! \left(x \right) &= F_{19} \left(x \right)^{2} F_{18}\! \left(x \right) F_{30}\! \left(x \right)\\ F_{84}\! \left(x \right) &= F_{105}\! \left(x \right)+F_{85}\! \left(x \right)\\ F_{85}\! \left(x \right) &= F_{86}\! \left(x \right)+F_{98}\! \left(x \right)\\ F_{86}\! \left(x \right) &= F_{87}\! \left(x \right)\\ F_{87}\! \left(x \right) &= F_{15}\! \left(x \right) F_{18}\! \left(x \right) F_{88}\! \left(x \right)\\ F_{88}\! \left(x \right) &= F_{89}\! \left(x \right)+F_{90}\! \left(x \right)\\ F_{89}\! \left(x \right) &= F_{18}\! \left(x \right) F_{39}\! \left(x \right)\\ F_{90}\! \left(x \right) &= F_{91}\! \left(x \right)\\ F_{91}\! \left(x \right) &= F_{19}\! \left(x \right) F_{32}\! \left(x \right) F_{92}\! \left(x \right)\\ F_{92}\! \left(x \right) &= F_{30}\! \left(x \right)+F_{93}\! \left(x \right)\\ F_{93}\! \left(x \right) &= F_{94}\! \left(x \right)\\ F_{94}\! \left(x \right) &= F_{15}\! \left(x \right) F_{95}\! \left(x \right)\\ F_{95}\! \left(x \right) &= F_{96}\! \left(x \right)+F_{97}\! \left(x \right)\\ F_{96}\! \left(x \right) &= F_{18}\! \left(x \right) F_{92}\! \left(x \right)\\ F_{97}\! \left(x \right) &= F_{32}\! \left(x \right) F_{92}\! \left(x \right)\\ F_{98}\! \left(x \right) &= F_{99}\! \left(x \right)\\ F_{99}\! \left(x \right) &= F_{100}\! \left(x \right) F_{15}\! \left(x \right)\\ F_{100}\! \left(x \right) &= F_{101}\! \left(x \right)+F_{103}\! \left(x \right)\\ F_{101}\! \left(x \right) &= F_{102}\! \left(x \right) F_{18}\! \left(x \right)\\ F_{102}\! \left(x \right) &= F_{68}\! \left(x \right)+F_{98}\! \left(x \right)\\ F_{103}\! \left(x \right) &= F_{104}\! \left(x \right)\\ F_{104}\! \left(x \right) &= F_{19} \left(x \right)^{2} F_{32}\! \left(x \right) F_{92}\! \left(x \right)\\ F_{105}\! \left(x \right) &= F_{106}\! \left(x \right)\\ F_{106}\! \left(x \right) &= F_{107}\! \left(x \right) F_{18}\! \left(x \right) F_{19}\! \left(x \right)\\ F_{107}\! \left(x \right) &= F_{108}\! \left(x \right)\\ F_{108}\! \left(x \right) &= F_{109}\! \left(x \right) F_{15}\! \left(x \right)\\ F_{109}\! \left(x \right) &= F_{110}\! \left(x \right)+F_{112}\! \left(x \right)\\ F_{110}\! \left(x \right) &= F_{111}\! \left(x \right) F_{18}\! \left(x \right)\\ F_{111}\! \left(x \right) &= F_{107}\! \left(x \right)+F_{93}\! \left(x \right)\\ F_{112}\! \left(x \right) &= F_{111}\! \left(x \right)+F_{113}\! \left(x \right)\\ F_{113}\! \left(x \right) &= F_{114}\! \left(x \right)+F_{116}\! \left(x \right)\\ F_{114}\! \left(x \right) &= F_{115}\! \left(x \right)\\ F_{115}\! \left(x \right) &= F_{15}\! \left(x \right) F_{19}\! \left(x \right) F_{95}\! \left(x \right)\\ F_{116}\! \left(x \right) &= F_{117}\! \left(x \right)\\ F_{117}\! \left(x \right) &= F_{118}\! \left(x \right) F_{15}\! \left(x \right) F_{18}\! \left(x \right)\\ F_{118}\! \left(x \right) &= F_{107}\! \left(x \right)+F_{116}\! \left(x \right)\\ F_{119}\! \left(x \right) &= F_{120}\! \left(x \right)+F_{121}\! \left(x \right)\\ F_{120}\! \left(x \right) &= F_{2}\! \left(x \right) F_{23}\! \left(x \right)\\ F_{121}\! \left(x \right) &= F_{122}\! \left(x \right)\\ F_{122}\! \left(x \right) &= F_{123}\! \left(x \right) F_{15}\! \left(x \right)\\ F_{123}\! \left(x \right) &= F_{124}\! \left(x \right)+F_{125}\! \left(x \right)\\ F_{124}\! \left(x \right) &= F_{121}\! \left(x \right)+F_{62}\! \left(x \right)\\ F_{125}\! \left(x \right) &= F_{126}\! \left(x \right) F_{19}\! \left(x \right)\\ F_{126}\! \left(x \right) &= F_{124}\! \left(x \right)+F_{127}\! \left(x \right)\\ F_{127}\! \left(x \right) &= F_{27}\! \left(x \right)\\ \end{align*}

### This specification was found using the strategy pack "Point And Col Placements Tracked Fusion" and has 67 rules.

Found on January 17, 2022.

Finding the specification took 701 seconds.

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\begin{align*} F_{0}\! \left(x \right) &= F_{1}\! \left(x \right)+F_{2}\! \left(x \right)\\ F_{1}\! \left(x \right) &= 1\\ F_{2}\! \left(x \right) &= F_{3}\! \left(x \right)\\ F_{3}\! \left(x \right) &= F_{4}\! \left(x \right)\\ F_{4}\! \left(x \right) &= F_{5}\! \left(x \right) F_{9}\! \left(x \right)\\ F_{5}\! \left(x \right) &= F_{10}\! \left(x \right)+F_{6}\! \left(x \right)\\ F_{6}\! \left(x \right) &= F_{1}\! \left(x \right)+F_{7}\! \left(x \right)\\ F_{7}\! \left(x \right) &= F_{8}\! \left(x \right)\\ F_{8}\! \left(x \right) &= F_{6} \left(x \right)^{2} F_{9}\! \left(x \right)\\ F_{9}\! \left(x \right) &= x\\ F_{10}\! \left(x \right) &= F_{11}\! \left(x \right)+F_{3}\! \left(x \right)\\ F_{11}\! \left(x \right) &= F_{12}\! \left(x \right)\\ F_{12}\! \left(x \right) &= F_{13}\! \left(x \right) F_{9}\! \left(x \right)\\ F_{13}\! \left(x \right) &= F_{14}\! \left(x \right)+F_{47}\! \left(x \right)\\ F_{14}\! \left(x \right) &= F_{15}\! \left(x \right)+F_{3}\! \left(x \right)+F_{46}\! \left(x \right)\\ F_{15}\! \left(x \right) &= F_{16}\! \left(x \right)\\ F_{16}\! \left(x \right) &= F_{17}\! \left(x \right) F_{9}\! \left(x \right)\\ F_{17}\! \left(x \right) &= F_{18}\! \left(x \right)+F_{32}\! \left(x \right)+F_{44}\! \left(x \right)\\ F_{18}\! \left(x \right) &= F_{19}\! \left(x \right)+F_{23}\! \left(x \right)\\ F_{19}\! \left(x \right) &= F_{20}\! \left(x \right) F_{6}\! \left(x \right)\\ F_{20}\! \left(x \right) &= F_{1}\! \left(x \right)+F_{21}\! \left(x \right)\\ F_{21}\! \left(x \right) &= F_{22}\! \left(x \right)\\ F_{22}\! \left(x \right) &= F_{20}\! \left(x \right) F_{9}\! \left(x \right)\\ F_{23}\! \left(x \right) &= F_{24}\! \left(x \right) F_{29}\! \left(x \right)\\ F_{24}\! \left(x \right) &= F_{25}\! \left(x \right)\\ F_{25}\! \left(x \right) &= F_{26}\! \left(x \right) F_{9}\! \left(x \right)\\ F_{26}\! \left(x \right) &= F_{10}\! \left(x \right)+F_{27}\! \left(x \right)\\ F_{27}\! \left(x \right) &= F_{28}\! \left(x \right)\\ F_{28}\! \left(x \right) &= F_{20}\! \left(x \right) F_{6}\! \left(x \right) F_{7}\! \left(x \right) F_{9}\! \left(x \right)\\ F_{29}\! \left(x \right) &= F_{1}\! \left(x \right)+F_{30}\! \left(x \right)\\ F_{30}\! \left(x \right) &= F_{31}\! \left(x \right)\\ F_{31}\! \left(x \right) &= F_{29}\! \left(x \right) F_{9}\! \left(x \right)\\ F_{32}\! \left(x \right) &= F_{33}\! \left(x \right)\\ F_{33}\! \left(x \right) &= F_{34}\! \left(x \right) F_{9}\! \left(x \right)\\ F_{34}\! \left(x \right) &= F_{17}\! \left(x \right)+F_{35}\! \left(x \right)\\ F_{35}\! \left(x \right) &= F_{36}\! \left(x \right) F_{41}\! \left(x \right)\\ F_{36}\! \left(x \right) &= F_{29}\! \left(x \right)+F_{37}\! \left(x \right)+F_{39}\! \left(x \right)\\ F_{37}\! \left(x \right) &= F_{38}\! \left(x \right)\\ F_{38}\! \left(x \right) &= F_{29}\! \left(x \right) F_{36}\! \left(x \right) F_{9}\! \left(x \right)\\ F_{39}\! \left(x \right) &= F_{40}\! \left(x \right)\\ F_{40}\! \left(x \right) &= F_{36}\! \left(x \right) F_{6}\! \left(x \right) F_{9}\! \left(x \right)\\ F_{41}\! \left(x \right) &= F_{42}\! \left(x \right)+F_{43}\! \left(x \right)\\ F_{42}\! \left(x \right) &= F_{20}\! \left(x \right) F_{7}\! \left(x \right)\\ F_{43}\! \left(x \right) &= F_{24}\! \left(x \right) F_{30}\! \left(x \right)\\ F_{44}\! \left(x \right) &= F_{45}\! \left(x \right)\\ F_{45}\! \left(x \right) &= F_{17}\! \left(x \right) F_{6}\! \left(x \right) F_{9}\! \left(x \right)\\ F_{46}\! \left(x \right) &= F_{11}\! \left(x \right)\\ F_{47}\! \left(x \right) &= F_{48}\! \left(x \right)+F_{49}\! \left(x \right)\\ F_{48}\! \left(x \right) &= F_{11}\! \left(x \right) F_{6}\! \left(x \right)\\ F_{49}\! \left(x \right) &= F_{50}\! \left(x \right)\\ F_{50}\! \left(x \right) &= F_{51}\! \left(x \right) F_{6}\! \left(x \right) F_{7}\! \left(x \right) F_{9}\! \left(x \right)\\ F_{51}\! \left(x \right) &= F_{52}\! \left(x \right)+F_{65}\! \left(x \right)\\ F_{52}\! \left(x \right) &= F_{53}\! \left(x \right)+F_{59}\! \left(x \right)+F_{6}\! \left(x \right)\\ F_{53}\! \left(x \right) &= F_{54}\! \left(x , 1\right)\\ F_{54}\! \left(x , y\right) &= F_{55}\! \left(x , y\right) F_{58}\! \left(x , y\right)\\ F_{55}\! \left(x , y\right) &= F_{54}\! \left(x , y\right)+F_{56}\! \left(x , y\right)+F_{6}\! \left(x \right)\\ F_{56}\! \left(x , y\right) &= F_{57}\! \left(x , y\right)\\ F_{57}\! \left(x , y\right) &= F_{55}\! \left(x , y\right) F_{6}\! \left(x \right) F_{9}\! \left(x \right)\\ F_{58}\! \left(x , y\right) &= y x\\ F_{59}\! \left(x \right) &= F_{60}\! \left(x \right)\\ F_{60}\! \left(x \right) &= F_{61}\! \left(x \right) F_{9}\! \left(x \right)\\ F_{61}\! \left(x \right) &= F_{62}\! \left(x \right)+F_{63}\! \left(x \right)\\ F_{62}\! \left(x \right) &= F_{52}\! \left(x \right) F_{6}\! \left(x \right)\\ F_{63}\! \left(x \right) &= F_{64}\! \left(x \right)\\ F_{64}\! \left(x \right) &= F_{6} \left(x \right)^{3} F_{51}\! \left(x \right) F_{9}\! \left(x \right)\\ F_{65}\! \left(x \right) &= F_{21}\! \left(x \right) F_{66}\! \left(x \right)\\ F_{66}\! \left(x \right) &= F_{55}\! \left(x , 1\right)\\ \end{align*}

### This specification was found using the strategy pack "Insertion Point Placements Tracked Fusion" and has 143 rules.

Found on January 17, 2022.

Finding the specification took 148 seconds.

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\begin{align*} F_{0}\! \left(x \right) &= F_{1}\! \left(x \right)+F_{2}\! \left(x \right)\\ F_{1}\! \left(x \right) &= 1\\ F_{2}\! \left(x \right) &= F_{3}\! \left(x \right)\\ F_{3}\! \left(x \right) &= F_{15}\! \left(x \right) F_{4}\! \left(x \right)\\ F_{4}\! \left(x \right) &= F_{0}\! \left(x \right)+F_{5}\! \left(x \right)\\ F_{5}\! \left(x \right) &= F_{2}\! \left(x \right)+F_{6}\! \left(x \right)\\ F_{6}\! \left(x \right) &= F_{7}\! \left(x \right)\\ F_{7}\! \left(x \right) &= F_{15}\! \left(x \right) F_{8}\! \left(x \right)\\ F_{8}\! \left(x \right) &= F_{31}\! \left(x \right)+F_{9}\! \left(x \right)\\ F_{9}\! \left(x \right) &= F_{10}\! \left(x \right)\\ F_{10}\! \left(x \right) &= F_{11}\! \left(x \right)+F_{16}\! \left(x \right)\\ F_{11}\! \left(x \right) &= F_{12}\! \left(x \right) F_{2}\! \left(x \right)\\ F_{12}\! \left(x \right) &= F_{1}\! \left(x \right)+F_{13}\! \left(x \right)\\ F_{13}\! \left(x \right) &= F_{14}\! \left(x \right)\\ F_{14}\! \left(x \right) &= F_{12}\! \left(x \right) F_{15}\! \left(x \right)\\ F_{15}\! \left(x \right) &= x\\ F_{16}\! \left(x \right) &= F_{17}\! \left(x \right)+F_{21}\! \left(x \right)\\ F_{17}\! \left(x \right) &= F_{18}\! \left(x \right) F_{19}\! \left(x \right)\\ F_{18}\! \left(x \right) &= F_{1}\! \left(x \right)+F_{19}\! \left(x \right)\\ F_{19}\! \left(x \right) &= F_{20}\! \left(x \right)\\ F_{20}\! \left(x \right) &= F_{18} \left(x \right)^{2} F_{15}\! \left(x \right)\\ F_{21}\! \left(x \right) &= F_{12}\! \left(x \right) F_{22}\! \left(x \right)\\ F_{22}\! \left(x \right) &= F_{23}\! \left(x \right)+F_{27}\! \left(x \right)\\ F_{23}\! \left(x \right) &= F_{19}\! \left(x \right) F_{24}\! \left(x \right)\\ F_{24}\! \left(x \right) &= F_{25}\! \left(x \right)\\ F_{25}\! \left(x \right) &= F_{15}\! \left(x \right) F_{26}\! \left(x \right)\\ F_{26}\! \left(x \right) &= F_{1}\! \left(x \right)+F_{24}\! \left(x \right)\\ F_{27}\! \left(x \right) &= F_{13}\! \left(x \right) F_{28}\! \left(x \right)\\ F_{28}\! \left(x \right) &= F_{29}\! \left(x \right)\\ F_{29}\! \left(x \right) &= F_{15}\! \left(x \right) F_{30}\! \left(x \right)\\ F_{30}\! \left(x \right) &= F_{28}\! \left(x \right)+F_{5}\! \left(x \right)\\ F_{31}\! \left(x \right) &= F_{32}\! \left(x \right)+F_{66}\! \left(x \right)\\ F_{32}\! \left(x \right) &= F_{33}\! \left(x \right)+F_{54}\! \left(x \right)\\ F_{33}\! \left(x \right) &= F_{34}\! \left(x \right)\\ F_{34}\! \left(x \right) &= F_{15}\! \left(x \right) F_{35}\! \left(x \right)\\ F_{35}\! \left(x \right) &= F_{36}\! \left(x \right)+F_{39}\! \left(x \right)\\ F_{36}\! \left(x \right) &= F_{33}\! \left(x \right)+F_{37}\! \left(x \right)\\ F_{37}\! \left(x \right) &= F_{19}\! \left(x \right)+F_{38}\! \left(x \right)\\ F_{38}\! \left(x \right) &= F_{12}\! \left(x \right) F_{19}\! \left(x \right)\\ F_{39}\! \left(x \right) &= F_{40}\! \left(x \right)+F_{53}\! \left(x \right)\\ F_{40}\! \left(x \right) &= F_{33}\! \left(x \right)+F_{41}\! \left(x \right)\\ F_{41}\! \left(x \right) &= F_{19}\! \left(x \right) F_{42}\! \left(x \right)\\ F_{42}\! \left(x \right) &= F_{19}\! \left(x \right)+F_{43}\! \left(x \right)\\ F_{43}\! \left(x \right) &= F_{44}\! \left(x \right)\\ F_{44}\! \left(x \right) &= F_{15}\! \left(x \right) F_{45}\! \left(x \right)\\ F_{45}\! \left(x \right) &= F_{46}\! \left(x \right)+F_{49}\! \left(x \right)\\ F_{46}\! \left(x \right) &= F_{43}\! \left(x \right)+F_{47}\! \left(x \right)\\ F_{47}\! \left(x \right) &= F_{13}\! \left(x \right)+F_{48}\! \left(x \right)\\ F_{48}\! \left(x \right) &= F_{12}\! \left(x \right) F_{13}\! \left(x \right)\\ F_{49}\! \left(x \right) &= F_{50}\! \left(x \right)+F_{52}\! \left(x \right)\\ F_{50}\! \left(x \right) &= F_{43}\! \left(x \right)+F_{51}\! \left(x \right)\\ F_{51}\! \left(x \right) &= F_{13}\! \left(x \right) F_{42}\! \left(x \right)\\ F_{52}\! \left(x \right) &= F_{19}\! \left(x \right) F_{43}\! \left(x \right)\\ F_{53}\! \left(x \right) &= F_{19}\! \left(x \right) F_{33}\! \left(x \right)\\ F_{54}\! \left(x \right) &= F_{55}\! \left(x \right)+F_{56}\! \left(x \right)\\ F_{55}\! \left(x \right) &= F_{19}\! \left(x \right) F_{2}\! \left(x \right)\\ F_{56}\! \left(x \right) &= F_{57}\! \left(x \right)\\ F_{57}\! \left(x \right) &= F_{15}\! \left(x \right) F_{58}\! \left(x \right)\\ F_{58}\! \left(x \right) &= F_{59}\! \left(x \right)+F_{62}\! \left(x \right)\\ F_{59}\! \left(x \right) &= F_{56}\! \left(x \right)+F_{60}\! \left(x \right)\\ F_{60}\! \left(x \right) &= F_{22}\! \left(x \right)+F_{61}\! \left(x \right)\\ F_{61}\! \left(x \right) &= F_{12}\! \left(x \right) F_{22}\! \left(x \right)\\ F_{62}\! \left(x \right) &= F_{63}\! \left(x \right)+F_{65}\! \left(x \right)\\ F_{63}\! \left(x \right) &= F_{56}\! \left(x \right)+F_{64}\! \left(x \right)\\ F_{64}\! \left(x \right) &= F_{22}\! \left(x \right) F_{42}\! \left(x \right)\\ F_{65}\! \left(x \right) &= F_{19}\! \left(x \right) F_{56}\! \left(x \right)\\ F_{66}\! \left(x \right) &= F_{120}\! \left(x \right)+F_{67}\! \left(x \right)\\ F_{67}\! \left(x \right) &= F_{68}\! \left(x \right)\\ F_{68}\! \left(x \right) &= F_{15}\! \left(x \right) F_{69}\! \left(x \right)\\ F_{69}\! \left(x \right) &= F_{70}\! \left(x \right)+F_{78}\! \left(x \right)\\ F_{70}\! \left(x \right) &= F_{71}\! \left(x \right)\\ F_{71}\! \left(x \right) &= F_{72}\! \left(x , 1\right)\\ F_{72}\! \left(x , y\right) &= -\frac{y \left(F_{73}\! \left(x , 1\right)-F_{73}\! \left(x , y\right)\right)}{-1+y}\\ F_{73}\! \left(x , y\right) &= F_{18}\! \left(x \right) F_{19}\! \left(x \right) F_{74}\! \left(x , y\right)\\ F_{74}\! \left(x , y\right) &= F_{75}\! \left(x , y\right)\\ F_{75}\! \left(x , y\right) &= F_{76}\! \left(x , y\right)^{2} F_{77}\! \left(x , y\right)\\ F_{76}\! \left(x , y\right) &= F_{1}\! \left(x \right)+F_{74}\! \left(x , y\right)\\ F_{77}\! \left(x , y\right) &= y x\\ F_{78}\! \left(x \right) &= F_{79}\! \left(x \right)+F_{83}\! \left(x \right)\\ F_{79}\! \left(x \right) &= F_{80}\! \left(x \right)+F_{81}\! \left(x \right)\\ F_{80}\! \left(x \right) &= F_{33}\! \left(x \right)+F_{67}\! \left(x \right)\\ F_{81}\! \left(x \right) &= F_{82}\! \left(x \right)\\ F_{82}\! \left(x \right) &= F_{19} \left(x \right)^{2} F_{18}\! \left(x \right) F_{24}\! \left(x \right)\\ F_{83}\! \left(x \right) &= F_{105}\! \left(x \right)+F_{84}\! \left(x \right)\\ F_{84}\! \left(x \right) &= F_{85}\! \left(x \right)+F_{98}\! \left(x \right)\\ F_{85}\! \left(x \right) &= F_{86}\! \left(x \right)\\ F_{86}\! \left(x \right) &= F_{15}\! \left(x \right) F_{87}\! \left(x \right)\\ F_{87}\! \left(x \right) &= F_{88}\! \left(x \right)+F_{90}\! \left(x \right)\\ F_{88}\! \left(x \right) &= F_{18}\! \left(x \right) F_{89}\! \left(x \right)\\ F_{89}\! \left(x \right) &= F_{33}\! \left(x \right)+F_{85}\! \left(x \right)\\ F_{90}\! \left(x \right) &= F_{91}\! \left(x \right)\\ F_{91}\! \left(x \right) &= F_{19}\! \left(x \right) F_{26}\! \left(x \right) F_{92}\! \left(x \right)\\ F_{92}\! \left(x \right) &= F_{24}\! \left(x \right)+F_{93}\! \left(x \right)\\ F_{93}\! \left(x \right) &= F_{94}\! \left(x \right)\\ F_{94}\! \left(x \right) &= F_{15}\! \left(x \right) F_{18}\! \left(x \right) F_{95}\! \left(x \right)\\ F_{95}\! \left(x \right) &= F_{96}\! \left(x \right)+F_{97}\! \left(x \right)\\ F_{96}\! \left(x \right) &= F_{18}\! \left(x \right) F_{24}\! \left(x \right)\\ F_{97}\! \left(x \right) &= F_{26}\! \left(x \right) F_{92}\! \left(x \right)\\ F_{98}\! \left(x \right) &= F_{99}\! \left(x \right)\\ F_{99}\! \left(x \right) &= F_{100}\! \left(x \right) F_{15}\! \left(x \right)\\ F_{100}\! \left(x \right) &= F_{101}\! \left(x \right)+F_{103}\! \left(x \right)\\ F_{101}\! \left(x \right) &= F_{102}\! \left(x \right) F_{18}\! \left(x \right)\\ F_{102}\! \left(x \right) &= F_{67}\! \left(x \right)+F_{98}\! \left(x \right)\\ F_{103}\! \left(x \right) &= F_{104}\! \left(x \right)\\ F_{104}\! \left(x \right) &= F_{19} \left(x \right)^{2} F_{26}\! \left(x \right) F_{92}\! \left(x \right)\\ F_{105}\! \left(x \right) &= F_{106}\! \left(x \right)\\ F_{106}\! \left(x \right) &= F_{107}\! \left(x \right) F_{18}\! \left(x \right) F_{19}\! \left(x \right)\\ F_{107}\! \left(x \right) &= F_{108}\! \left(x \right)\\ F_{108}\! \left(x \right) &= F_{109}\! \left(x \right) F_{15}\! \left(x \right)\\ F_{109}\! \left(x \right) &= F_{110}\! \left(x \right)+F_{112}\! \left(x \right)\\ F_{110}\! \left(x \right) &= F_{111}\! \left(x \right) F_{18}\! \left(x \right)\\ F_{111}\! \left(x \right) &= F_{107}\! \left(x \right)+F_{93}\! \left(x \right)\\ F_{112}\! \left(x \right) &= F_{111}\! \left(x \right)+F_{113}\! \left(x \right)\\ F_{113}\! \left(x \right) &= F_{114}\! \left(x \right)+F_{117}\! \left(x \right)\\ F_{114}\! \left(x \right) &= F_{115}\! \left(x \right)\\ F_{115}\! \left(x \right) &= F_{116}\! \left(x \right) F_{15}\! \left(x \right) F_{18}\! \left(x \right)\\ F_{116}\! \left(x \right) &= F_{114}\! \left(x \right)+F_{93}\! \left(x \right)\\ F_{117}\! \left(x \right) &= F_{118}\! \left(x \right)\\ F_{118}\! \left(x \right) &= F_{119}\! \left(x \right) F_{15}\! \left(x \right) F_{18}\! \left(x \right)\\ F_{119}\! \left(x \right) &= F_{107}\! \left(x \right)+F_{117}\! \left(x \right)\\ F_{120}\! \left(x \right) &= F_{121}\! \left(x \right)+F_{136}\! \left(x \right)\\ F_{121}\! \left(x \right) &= F_{122}\! \left(x \right) F_{2}\! \left(x \right)\\ F_{122}\! \left(x \right) &= F_{123}\! \left(x \right)\\ F_{123}\! \left(x \right) &= F_{124}\! \left(x , 1\right)\\ F_{124}\! \left(x , y\right) &= F_{125}\! \left(x , y\right)\\ F_{125}\! \left(x , y\right) &= F_{126}\! \left(x , y\right)\\ F_{126}\! \left(x , y\right) &= F_{127}\! \left(x , y\right) F_{15}\! \left(x \right) F_{18}\! \left(x \right)\\ F_{127}\! \left(x , y\right) &= F_{128}\! \left(x , y\right)+F_{133}\! \left(x , y\right)\\ F_{128}\! \left(x , y\right) &= F_{129}\! \left(x , y\right)+F_{132}\! \left(x , y\right)\\ F_{129}\! \left(x , y\right) &= F_{130}\! \left(x , y\right)\\ F_{130}\! \left(x , y\right) &= F_{131}\! \left(x , y\right) F_{77}\! \left(x , y\right)\\ F_{131}\! \left(x , y\right) &= F_{1}\! \left(x \right)+F_{129}\! \left(x , y\right)\\ F_{132}\! \left(x , y\right) &= F_{129}\! \left(x , y\right) F_{131}\! \left(x , y\right)\\ F_{133}\! \left(x , y\right) &= F_{134}\! \left(x , y\right)+F_{135}\! \left(x , y\right)\\ F_{134}\! \left(x , y\right) &= F_{129}\! \left(x , y\right) F_{19}\! \left(x \right)\\ F_{135}\! \left(x , y\right) &= F_{125}\! \left(x , y\right) F_{131}\! \left(x , y\right)\\ F_{136}\! \left(x \right) &= F_{137}\! \left(x \right)\\ F_{137}\! \left(x \right) &= F_{138}\! \left(x \right) F_{15}\! \left(x \right)\\ F_{138}\! \left(x \right) &= F_{139}\! \left(x \right)+F_{140}\! \left(x \right)\\ F_{139}\! \left(x \right) &= F_{12}\! \left(x \right) F_{56}\! \left(x \right)\\ F_{140}\! \left(x \right) &= F_{141}\! \left(x \right) F_{142}\! \left(x \right)\\ F_{141}\! \left(x \right) &= F_{122}\! \left(x \right)+F_{19}\! \left(x \right)\\ F_{142}\! \left(x \right) &= F_{22}\! \left(x \right)+F_{56}\! \left(x \right)\\ \end{align*}