Number of pairs (y, v), where y is a partition of n and v is a sub-multiset of y whose cardinality equals the number of distinct parts in y.

A355383

Number of pairs (y, v), where y is a partition of n and v is a sub-multiset of y whose cardinality equals the number of distinct parts in y.

Terms

    a(0) =1a(1) =1a(2) =2a(3) =3a(4) =6a(5) =10a(6) =16a(7) =26a(8) =42a(9) =64a(10) =100a(11) =150a(12) =224a(13) =330a(14) =482a(15) =697a(16) =999a(17) =1418a(18) =1996a(19) =2794a(20) =3879a(21) =5355a(22) =7343a(23) =10018a(24) =13583a(25) =18338a(26) =24618a(27) =32917a(28) =43790a(29) =58043

External references