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A318369 Number of non-isomorphic set multipartitions (multisets of sets) of the multiset of prime indices of n. 6

%I #4 Aug 26 2018 20:12:33

%S 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,

%T 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,

%U 2,3,1,3,1,2,2,2,2,3,1,2,1,2,1,5,2,2,2

%N Number of non-isomorphic set multipartitions (multisets of sets) of the multiset of prime indices of n.

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

%e {{1,2},{1,2,3}}

%e {{1},{2},{1,2,3}}

%e {{1},{1,2},{2,3}}

%e {{3},{1,2},{1,2}}

%e {{1},{1},{2},{2,3}}

%e {{1},{2},{3},{1,2}}

%e {{1},{1},{2},{2},{3}}

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

%K nonn

%O 1,6

%A _Gus Wiseman_, Aug 24 2018

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Last modified August 31 03:10 EDT 2024. Contains 375550 sequences. (Running on oeis4.)