Expansion of Product_{m>=1} (1 - m*q^m)^4.

Terms

a(0) =1a(1) =-4a(2) =-2a(3) =16a(4) =9a(5) =4a(6) =-90a(7) =-56a(8) =12a(9) =60a(10) =700a(11) =232a(12) =-51a(13) =-1128a(14) =-2006a(15) =-3648a(16) =-2999a(17) =6292a(18) =12004a(19) =19192a(20) =8829a(21) =35024a(22) =-43368a(23) =-92480a(24) =-113859a(25) =-227356a(26) =-33906a(27) =55072a(28) =569221a(29) =631620