Number of integer partitions of n with exactly two distinct multiplicities.

Terms

a(0) =0a(1) =0a(2) =0a(3) =0a(4) =1a(5) =3a(6) =3a(7) =9a(8) =12a(9) =19a(10) =26a(11) =39a(12) =47a(13) =70a(14) =89a(15) =115a(16) =148a(17) =189a(18) =235a(19) =294a(20) =362a(21) =450a(22) =558a(23) =669a(24) =817a(25) =980a(26) =1197a(27) =1421a(28) =1709a(29) =2012