Number of partitions of n with distinct occurrences of parts.

Terms

a(0) =1a(1) =1a(2) =2a(3) =2a(4) =4a(5) =5a(6) =7a(7) =9a(8) =13a(9) =16a(10) =19a(11) =27a(12) =33a(13) =40a(14) =54a(15) =63a(16) =75a(17) =99a(18) =116a(19) =140a(20) =175a(21) =198a(22) =244a(23) =293a(24) =349a(25) =401a(26) =491a(27) =563a(28) =666a(29) =790