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

Terms

a(0) =1a(1) =3a(2) =7a(3) =14a(4) =27a(5) =48a(6) =82a(7) =134a(8) =215a(9) =336a(10) =515a(11) =773a(12) =1145a(13) =1670a(14) =2406a(15) =3423a(16) =4824a(17) =6730a(18) =9310a(19) =12768a(20) =17385a(21) =23499a(22) =31559a(23) =42111a(24) =55876a(25) =73726a(26) =96784a(27) =126418a(28) =164375a(29) =212772