Number of integer partitions of n without all distinct multiplicities.

Terms

a(0) =0a(1) =0a(2) =0a(3) =1a(4) =1a(5) =2a(6) =4a(7) =5a(8) =9a(9) =15a(10) =21a(11) =28a(12) =46a(13) =56a(14) =80a(15) =114a(16) =149a(17) =192a(18) =269a(19) =337a(20) =455a(21) =584a(22) =751a(23) =943a(24) =1234a(25) =1527a(26) =1944a(27) =2422a(28) =3042a(29) =3739