26614
domain: N
Appears in sequences
- Expansion of 1/(1-x^3-x^4-x^5-x^6).at n=36A017819
- Number of labeled Eulerian graphs with n nodes.at n=6A033678
- a(n) is the total area of all self-avoiding polygons of length 2n on the square lattice.at n=6A056625
- Triangular array read by rows: T(n,k) is the number of simple labeled graphs with n vertices and k components such that each vertex has even degree; n >= 1, 1 <= k <= n.at n=21A228550
- a(n) has exactly (a(n) - n) / 2 partitions with exactly (a(n) - n) / 2 prime parts.at n=32A299732
- Array read by antidiagonals: T(n,k) is the number of sensed k-regular combinatorial maps with n vertices, n >= 0, k >= 1.at n=39A380626
- Number of sensed 6-regular combinatorial maps with n vertices.at n=3A380628
- a(n) = [x^n] Product_{k=0..2*n-1} (x - (-1)^k * (2*k+1)).at n=4A383704