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

Terms

a(0) =1a(1) =1a(2) =5a(3) =14a(4) =42a(5) =103a(6) =289a(7) =690a(8) =1771a(9) =4206a(10) =10142a(11) =23449a(12) =54786a(13) =123528a(14) =279480a(15) =619206a(16) =1366405a(17) =2969071a(18) =6425534a(19) =13727775a(20) =29187555a(21) =61439660a(22) =128620370a(23) =267044222a(24) =551527679a(25) =1130806020a(26) =2306746335a(27) =4676096006a(28) =9432394144a(29) =18920266428