A323787 - OEIS

A323787

Number of non-isomorphic multiset partitions of strict multiset partitions of weight n.

1, 1, 4, 14, 56, 219, 1001, 4588

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

OFFSET

0,3

COMMENTS

The weight of an atom is 1, and the weight of a multiset is the sum of weights of its elements, counting multiplicity.

LINKS

EXAMPLE

Non-isomorphic representatives of the a(1) = 1 through a(3) = 14 multiset partitions:

{{1}{2}} {{123}}

{{1}}{{2}} {{1}{11}}

{{1}{12}}

{{1}{23}}

{{2}{11}}

{{1}{2}{3}}

{{1}}{{2}{3}}

CROSSREFS

KEYWORD

nonn,more

AUTHOR

Gus Wiseman, Jan 27 2019

STATUS

approved