378871

Appears in sequences

• Consider the family of multigraphs enriched by the species of endofunctions. Sequence gives number of those multigraphs with n labeled edges.at n=6A099708
• Numbers k such that the reversal of phi(k) is sigma(k)-k.at n=8A254320
• Number of rooted full binary trees with n internal nodes, up to their multiset of subtree sizes.at n=19A382440