Number of non-isomorphic multiset partitions of weight n with no constant parts and only two distinct vertices.
A323654
Number of non-isomorphic multiset partitions of weight n with no constant parts and only two distinct vertices.
Terms
- a(0) =1a(1) =0a(2) =1a(3) =1a(4) =3a(5) =3a(6) =8a(7) =9a(8) =20a(9) =26a(10) =50a(11) =69a(12) =125a(13) =177a(14) =301a(15) =440a(16) =717a(17) =1055a(18) =1675a(19) =2471a(20) =3835a(21) =5660a(22) =8627a(23) =12697a(24) =19095a(25) =27978a(26) =41581a(27) =60650a(28) =89244a(29) =129490
External references
- oeis: A323654