Number of partitions of n into parts 3k and 3k+2 with at least one part of each type.

Terms

a(0) =0a(1) =0a(2) =0a(3) =0a(4) =1a(5) =0a(6) =1a(7) =3a(8) =1a(9) =3a(10) =7a(11) =3a(12) =8a(13) =14a(14) =8a(15) =17a(16) =26a(17) =18a(18) =33a(19) =47a(20) =36a(21) =61a(22) =81a(23) =68a(24) =106a(25) =137a(26) =121a(27) =181a(28) =224a(29) =209