44727
domain: N
Appears in sequences
- Sum of first k numbers in column k of the natural number array A000027; by antidiagonals.at n=33A185787
- a(n) = Bell(n)*Motzkin(n-1).at n=6A290446
- Number of 4-regular 3-connected planar graphs with n vertices having an Eulerian tour for which no two consecutive edges are incident with the same face.at n=13A308588