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A323787
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Number of non-isomorphic multiset partitions of strict multiset partitions of weight n.
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17
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OFFSET
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0,3
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COMMENTS
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The weight of an atom is 1, and the weight of a multiset is the sum of weights of its elements, counting multiplicity.
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LINKS
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EXAMPLE
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Non-isomorphic representatives of the a(1) = 1 through a(3) = 14 multiset partitions:
{{1}} {{11}} {{111}}
{{12}} {{112}}
{{1}{2}} {{123}}
{{1}}{{2}} {{1}{11}}
{{1}{12}}
{{1}{23}}
{{2}{11}}
{{1}}{{11}}
{{1}}{{12}}
{{1}}{{23}}
{{1}{2}{3}}
{{2}}{{11}}
{{1}}{{2}{3}}
{{1}}{{2}}{{3}}
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CROSSREFS
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Cf. A002846, A005121, A007716, A050343, A213427, A269134, A283877, A306186, A316980, A317791, A318564, A318565, A318566, A318812.
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KEYWORD
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nonn,more
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AUTHOR
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STATUS
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approved
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