Number of nested pairs of Dyck paths of lengths n and n+1.
A389288
Number of nested pairs of Dyck paths of lengths n and n+1.
Terms
- a(0) =1a(1) =2a(2) =8a(3) =44a(4) =294a(5) =2244a(6) =18876a(7) =171028a(8) =1643356a(9) =16560856a(10) =173603456a(11) =1881260528a(12) =20972215580a(13) =239589707400
External references
- oeis: A389288