Expansion of Product_{k>=1} (1+x^(3*k-1))^k.

Terms

a(0) =1a(1) =0a(2) =1a(3) =0a(4) =0a(5) =2a(6) =0a(7) =2a(8) =3a(9) =0a(10) =4a(11) =4a(12) =1a(13) =10a(14) =5a(15) =6a(16) =16a(17) =6a(18) =14a(19) =28a(20) =10a(21) =32a(22) =40a(23) =18a(24) =63a(25) =60a(26) =42a(27) =112a(28) =83a(29) =84