Number of partitions of 2n with equal number of parts congruent to each of 1 and 3 (mod 4).

Terms

a(0) =1a(1) =1a(2) =3a(3) =4a(4) =10a(5) =13a(6) =28a(7) =37a(8) =72a(9) =96a(10) =172a(11) =230a(12) =391a(13) =522a(14) =846a(15) =1129a(16) =1766a(17) =2348a(18) =3564a(19) =4722a(20) =6992a(21) =9226a(22) =13371a(23) =17568a(24) =25006a(25) =32708a(26) =45817a(27) =59668a(28) =82430a(29) =106874