Number of partitions of n into distinct parts, the least being even.

Terms

a(0) =0a(1) =0a(2) =1a(3) =0a(4) =1a(5) =1a(6) =2a(7) =1a(8) =2a(9) =3a(10) =4a(11) =4a(12) =5a(13) =6a(14) =8a(15) =9a(16) =11a(17) =14a(18) =16a(19) =18a(20) =22a(21) =26a(22) =31a(23) =36a(24) =42a(25) =49a(26) =57a(27) =66a(28) =76a(29) =88