Expansion of Product_{k>=1} (1 + x^(3*k-1))^(3*k-1) * (1 + x^(3*k-2))^(3*k-2).

Terms

a(0) =1a(1) =1a(2) =2a(3) =2a(4) =5a(5) =10a(6) =13a(7) =25a(8) =35a(9) =57a(10) =87a(11) =134a(12) =211a(13) =306a(14) =458a(15) =684a(16) =996a(17) =1465a(18) =2129a(19) =3073a(20) =4411a(21) =6288a(22) =8977a(23) =12707a(24) =17913a(25) =25185a(26) =35231a(27) =49078a(28) =68228a(29) =94490