Expansion of Product_{k>=1} (1 - x^(6*k)) * (1 + x^k) / (1 - x^k).

Terms

a(0) =1a(1) =2a(2) =4a(3) =8a(4) =14a(5) =24a(6) =39a(7) =62a(8) =96a(9) =146a(10) =218a(11) =320a(12) =463a(13) =662a(14) =936a(15) =1310a(16) =1816a(17) =2496a(18) =3404a(19) =4608a(20) =6196a(21) =8278a(22) =10994a(23) =14520a(24) =19076a(25) =24938a(26) =32448a(27) =42032a(28) =54218a(29) =69656