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

Terms

a(0) =1a(1) =1a(2) =4a(3) =13a(4) =42a(5) =130a(6) =397a(7) =1197a(8) =3566a(9) =10517a(10) =30760a(11) =89293a(12) =257397a(13) =737220a(14) =2099215a(15) =5945594a(16) =16756258a(17) =47004829a(18) =131286914a(19) =365203797a(20) =1012031772a(21) =2794446326a(22) =7690009600a(23) =21094325177a(24) =57687762889a(25) =157306741287a(26) =427777384499