Number of partitions of n such that the number of different parts is odd.

Terms

a(0) =1a(1) =2a(2) =2a(3) =3a(4) =2a(5) =5a(6) =4a(7) =9a(8) =13a(9) =19a(10) =27a(11) =43a(12) =54a(13) =71a(14) =102a(15) =124a(16) =161a(17) =200a(18) =257a(19) =319a(20) =400a(21) =484a(22) =618a(23) =761a(24) =956a(25) =1164a(26) =1450a(27) =1806a(28) =2226a(29) =2741