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A318369 Number of non-isomorphic set multipartitions (multisets of sets) of the multiset of prime indices of n. 6
1, 1, 1, 1, 1, 2, 1, 1, 1, 2, 1, 2, 1, 2, 2, 1, 1, 2, 1, 2, 2, 2, 1, 2, 1, 2, 1, 2, 1, 3, 1, 1, 2, 2, 2, 3, 1, 2, 2, 2, 1, 3, 1, 2, 2, 2, 1, 2, 1, 2, 2, 2, 1, 2, 2, 2, 2, 2, 1, 5, 1, 2, 2, 1, 2, 3, 1, 2, 2, 3, 1, 3, 1, 2, 2, 2, 2, 3, 1, 2, 1, 2, 1, 5, 2, 2, 2 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,6

LINKS

Table of n, a(n) for n=1..87.

EXAMPLE

Non-isomorphic representatives of the a(180) = 7 set multipartitions of {1,1,2,2,3}:

  {{1,2},{1,2,3}}

  {{1},{2},{1,2,3}}

  {{1},{1,2},{2,3}}

  {{3},{1,2},{1,2}}

  {{1},{1},{2},{2,3}}

  {{1},{2},{3},{1,2}}

  {{1},{1},{2},{2},{3}}

CROSSREFS

Cf. A001055, A007716, A056239, A112798, A049311, A116540, A317791, A318360, A318361.

Sequence in context: A343943 A345926 A096825 * A007875 A323437 A339887

Adjacent sequences:  A318366 A318367 A318368 * A318370 A318371 A318372

KEYWORD

nonn

AUTHOR

Gus Wiseman, Aug 24 2018

STATUS

approved

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Last modified September 18 22:29 EDT 2021. Contains 347548 sequences. (Running on oeis4.)