32670332

Appears in sequences

• Triangular array E(n,k) counting not necessarily connected k-regular simple graphs on n vertices with girth at least 4.at n=103A185304
• Irregular triangle E(n,g) counting not necessarily connected 4-regular simple graphs on n vertices with girth at least g.at n=26A185340
• Number of not necessarily connected 4-regular simple graphs on n vertices with girth at least 4.at n=19A185344