Number of superdiagonal partitions: partitions (p1, p2, p3, ...) of n such that pi >= i.

Terms

a(0) =1a(1) =1a(2) =1a(3) =2a(4) =3a(5) =3a(6) =5a(7) =7a(8) =9a(9) =11a(10) =14a(11) =19a(12) =25a(13) =31a(14) =38a(15) =46a(16) =59a(17) =73a(18) =92a(19) =112a(20) =135a(21) =162a(22) =196a(23) =237a(24) =289a(25) =349a(26) =417a(27) =496a(28) =587a(29) =691