Number of non-isomorphic multiset partitions of weight n with no singletons or vertices that appear only once.

A320665

Number of non-isomorphic multiset partitions of weight n with no singletons or vertices that appear only once.

Terms

    a(0) =1a(1) =0a(2) =1a(3) =1a(4) =5a(5) =6a(6) =27a(7) =47a(8) =169a(9) =406a(10) =1327a(11) =3790a(12) =12560a(13) =39919a(14) =136821a(15) =470589a(16) =1687981a(17) =6162696a(18) =23173374a(19) =88981796a(20) =349969596a(21) =1405386733a(22) =5764142220a(23) =24111709328a(24) =102825231702a(25) =446665313598

External references