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%I #6 May 02 2023 17:49:10
%S 1,1,3,17,888,1882581,274390124129,3265588702832507993,
%T 4299566944915974710190397764,828675148077869385766758257425030178834,
%U 30068353582978500344223495096836001731261047276252951,257277650306758464761197063911448586633222894357360550424924677512839
%N Number of nonisomorphic multisets of permutations of an n-set with n permutations.
%C Isomorphism is up to permutation of the elements of the n-set.
%H Andrew Howroyd, <a href="/A362647/b362647.txt">Table of n, a(n) for n = 0..30</a>
%Y Main diagonal of A362644.
%Y Cf. A362651.
%K nonn
%O 0,3
%A _Andrew Howroyd_, May 01 2023
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