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

Terms

a(0) =1a(1) =1a(2) =1a(3) =1a(4) =3a(5) =3a(6) =3a(7) =3a(8) =7a(9) =10a(10) =10a(11) =10a(12) =18a(13) =24a(14) =24a(15) =24a(16) =44a(17) =56a(18) =65a(19) =65a(20) =105a(21) =129a(22) =147a(23) =147a(24) =227a(25) =292a(26) =328a(27) =355a(28) =515a(29) =645