37885204

Appears in sequences

• Number of labeled graphs on n nodes with degree set {2,4}.at n=9A228697
• Irregular triangle read by rows: T(n,k) is the number of k-regular graphs on n labeled nodes with loops allowed, n >= 1, 0 <= k <= n + 1.at n=56A333158
• Irregular triangle read by rows: T(n,k) is the number of k-regular graphs on n labeled nodes with loops allowed, n >= 1, 0 <= k <= n + 1.at n=58A333158