Number of partitions of n into even parts.

Terms

a(0) =1a(1) =0a(2) =1a(3) =0a(4) =2a(5) =0a(6) =3a(7) =0a(8) =5a(9) =0a(10) =7a(11) =0a(12) =11a(13) =0a(14) =15a(15) =0a(16) =22a(17) =0a(18) =30a(19) =0a(20) =42a(21) =0a(22) =56a(23) =0a(24) =77a(25) =0a(26) =101a(27) =0a(28) =135a(29) =0