Number of integer partitions that are the first sums of some integer partition of n > 0.

Terms

a(0) =1a(1) =2a(2) =3a(3) =4a(4) =6a(5) =9a(6) =13a(7) =19a(8) =27a(9) =38a(10) =52a(11) =71a(12) =95a(13) =127a(14) =167a(15) =219a(16) =284a(17) =368a(18) =471a(19) =603a(20) =765a(21) =969a(22) =1218a(23) =1529a(24) =1907a(25) =2375a(26) =2941a(27) =3636a(28) =4473a(29) =5495