Expansion of Product_{m>=1} 1/(1 + m*q^m)^9.

Terms

a(0) =1a(1) =-9a(2) =27a(3) =-30a(4) =72a(5) =-387a(6) =738a(7) =-801a(8) =2889a(9) =-8119a(10) =13005a(11) =-25038a(12) =57735a(13) =-122643a(14) =247788a(15) =-432786a(16) =862497a(17) =-1944657a(18) =3520721a(19) =-6191280a(20) =12743919a(21) =-24916977a(22) =45349101a(23) =-83116206a(24) =156731304a(25) =-299550636a(26) =547421607