Expansion of Product_{m>=1} (1-m*q^m)^18.

Terms

a(0) =1a(1) =-18a(2) =117a(3) =-222a(4) =-936a(5) =4680a(6) =-951a(7) =-23634a(8) =4815a(9) =89692a(10) =170019a(11) =-583992a(12) =-1009011a(13) =1753434a(14) =3755619a(15) =3911748a(16) =-16001739a(17) =-35135352a(18) =6931209a(19) =99524520a(20) =287076168a(21) =-92384118a(22) =-969330771a(23) =-1271547612a(24) =-41096046