Av(1234, 1324, 2143, 2413, 3142)
Generating Function
Counting Sequence
1, 1, 2, 6, 19, 55, 156, 444, 1269, 3629, 10374, 29650, 84743, 242211, 692288, ...
Implicit Equation for the Generating Function
Recurrence
Explicit Closed Form
This specification was found using the strategy pack "Point Placements" and has 72 rules.
Found on January 18, 2022.Finding the specification took 1 seconds.
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