252207

Appears in sequences

• Number of isomorphism classes of connected 6-regular loopless multigraphs of order n.at n=8A129421
• Number of connected 2n-regular loopless multigraphs on nine unlabeled nodes.at n=3A327604
• Array read by antidiagonals: T(n,r) is the number of connected r-regular loopless multigraphs on n unlabeled nodes.at n=129A328682