Expansion of Product_{m>=1} (1+m*q^m)^-27.

Terms

a(0) =1a(1) =-27a(2) =324a(3) =-2277a(4) =10584a(5) =-36882a(6) =118395a(7) =-406836a(8) =1347273a(9) =-3870993a(10) =10536993a(11) =-30432051a(12) =86382090a(13) =-223153434a(14) =565228773a(15) =-1490547915a(16) =3825187308a(17) =-9277759872a(18) =22515299145a(19) =-55438134588a(20) =132989193954