Number of parts of even multiplicities in all the partitions of n.

Terms

a(0) =0a(1) =0a(2) =1a(3) =0a(4) =3a(5) =2a(6) =6a(7) =6a(8) =15a(9) =15a(10) =29a(11) =34a(12) =58a(13) =70a(14) =109a(15) =132a(16) =199a(17) =246a(18) =348a(19) =435a(20) =601a(21) =746a(22) =1005a(23) =1252a(24) =1653a(25) =2053a(26) =2666a(27) =3298a(28) =4231a(29) =5219