Number of partitions of n into an even number of parts.

Terms

a(0) =1a(1) =0a(2) =1a(3) =1a(4) =3a(5) =3a(6) =6a(7) =7a(8) =12a(9) =14a(10) =22a(11) =27a(12) =40a(13) =49a(14) =69a(15) =86a(16) =118a(17) =146a(18) =195a(19) =242a(20) =317a(21) =392a(22) =505a(23) =623a(24) =793a(25) =973a(26) =1224a(27) =1498a(28) =1867a(29) =2274