Expansion of Product_{m>=1} (1 + m*q^m)^11.

Terms

a(0) =1a(1) =11a(2) =77a(3) =440a(4) =2167a(5) =9592a(6) =39127a(7) =149237a(8) =538329a(9) =1851674a(10) =6111171a(11) =19448573a(12) =59922709a(13) =179331603a(14) =522723740a(15) =1487454914a(16) =4140279660a(17) =11292030255a(18) =30221623905a(19) =79475723767a(20) =205600559461a(21) =523762010695