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

Terms

a(0) =1a(1) =1a(2) =3a(3) =10a(4) =29a(5) =82a(6) =231a(7) =646a(8) =1780a(9) =4835a(10) =13009a(11) =34794a(12) =92600a(13) =245119a(14) =644983a(15) =1686869a(16) =4387030a(17) =11353686a(18) =29261059a(19) =75134965a(20) =192261744a(21) =490305251a(22) =1246128051a(23) =3156425284a(24) =7969135647a(25) =20057905672a(26) =50339682075a(27) =126002008265a(28) =314604617989a(29) =783668652379