21609301
domain: N
Appears in sequences
- Number of connected regular graphs of degree 7 with 2n nodes.at n=7A014377
- Number of 6-regular graphs (sextic graphs) on n vertices.at n=14A165627
- Number of 7-regular graphs (septic graphs) on 2n vertices.at n=7A165628
- Irregular triangle C(n,g) counting the connected 7-regular simple graphs on 2n vertices with girth at least g.at n=3A184971
- Number of connected k-regular graphs on 2*n nodes with maximal diameter D(n,k) A296525 written as array T(n,k), 2 <= k < 2*n.at n=35A296526