A362647 - OEIS

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A362647

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

4

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

(list; graph; refs; listen; history; text; internal format)

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.

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