Number of non-isomorphic multiset partitions of weight n with at most 2 distinct vertices, or with at most 2 (not necessarily distinct) edges.
A323655
Number of non-isomorphic multiset partitions of weight n with at most 2 distinct vertices, or with at most 2 (not necessarily distinct) edges.
Terms
- a(0) =1a(1) =1a(2) =4a(3) =7a(4) =19a(5) =35a(6) =80a(7) =149a(8) =307a(9) =566a(10) =1092a(11) =1974a(12) =3643a(13) =6447a(14) =11498a(15) =19947a(16) =34636a(17) =58974a(18) =100182a(19) =167713a(20) =279659a(21) =461056a(22) =756562a(23) =1230104a(24) =1990255a(25) =3195471a(26) =5105540a(27) =8103722a(28) =12801925a(29) =20107448
External references
- oeis: A323655