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

Terms

a(0) =1a(1) =2a(2) =6a(3) =19a(4) =61a(5) =191a(6) =588a(7) =1785a(8) =5351a(9) =15868a(10) =46628a(11) =135921a(12) =393318a(13) =1130538a(14) =3229753a(15) =9175347a(16) =25931605a(17) =72936434a(18) =204223348a(19) =569427145a(20) =1581458917a(21) =4375905243a(22) =12065914843a(23) =33160240020a(24) =90848002909a(25) =248154744196a(26) =675932128695