171168
domain: N
Appears in sequences
- Number of unlabeled trivalent 3-connected bipartite planar graphs with 2n nodes.at n=18A007083
- Coefficients of polynomials D(n,x) related to median Euler numbers.at n=20A098277
- Constant terms of polynomials in A098277.at n=5A098431
- Number of ways of placing n rooks on an n X n chessboard with the topology of a Klein bottle.at n=9A134983