A362647 Number of nonisomorphic multisets of permutations of an n-set with n permutations.

1, 1, 3, 17, 888, 1882581, 274390124129, 3265588702832507993, 4299566944915974710190397764, 828675148077869385766758257425030178834, 30068353582978500344223495096836001731261047276252951, 257277650306758464761197063911448586633222894357360550424924677512839

Offset

0,3

Comments

Isomorphism is up to permutation of the elements of the n-set.

Links

Andrew Howroyd, Table of n, a(n) for n = 0..30

Crossrefs

Main diagonal of A362644.

Cf. A362651.

Sequence in context: A270816 A217957 A252730 * A225728 A351590 A175984

Adjacent sequences: A362644 A362645 A362646 * A362648 A362649 A362650

Keyword

nonn

Author

Andrew Howroyd, May 01 2023

Status

approved