39242
domain: N
Appears in sequences
- Number of binary strings of length 2n that contain the ones' complements and the reversals of each of their two halves.at n=22A237502
- Number of (n+2)X(4+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000101 or 00001011.at n=20A261551
- G.f.: Sum_{k>=1} x^(2*k)/(1+x^(2*k)) * Product_{k>=1} (1+x^k)/(1-x^k).at n=26A305122
- Triangle read by rows: T(n,k) is the number of sensed combinatorial maps with n edges and k vertices, 1 <= k <= n + 1.at n=30A380615
- Number of sensed combinatorial maps with n edges and 3 vertices.at n=5A380619