Expansion of Product_{k>=1} 1/(1-x^(3*k-1)) * Product_{k>=1} 1/(1-x^(6*k-5)).

Terms

a(0) =1a(1) =1a(2) =2a(3) =2a(4) =3a(5) =4a(6) =5a(7) =7a(8) =9a(9) =11a(10) =14a(11) =17a(12) =21a(13) =26a(14) =32a(15) =39a(16) =47a(17) =56a(18) =67a(19) =80a(20) =95a(21) =113a(22) =133a(23) =156a(24) =183a(25) =214a(26) =250a(27) =291a(28) =338a(29) =391