Av(1234, 2431)
Generating Function
Counting Sequence
1, 1, 2, 6, 22, 86, 330, 1198, 4087, 13185, 40619, 120636, 348197, 983073, 2728722, ...
Implicit Equation for the Generating Function
Recurrence
Explicit Closed Form
Heatmap
To create this heatmap, we sampled 1,000,000 permutations of length 300
uniformly at random. The color of the point
This specification was found using the strategy pack "Point Placements" and has 268 rules.
Found on January 18, 2022.Finding the specification took 29 seconds.
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This specification was found using the strategy pack "Regular Insertion Encoding Bottom" and has 393 rules.
Found on April 28, 2021.Finding the specification took 13 seconds.
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