Expansion of Product_{m>=1} (1+q^m)^(-19).

Terms

a(0) =1a(1) =-19a(2) =171a(3) =-988a(4) =4237a(5) =-14896a(6) =46075a(7) =-130549a(8) =344888a(9) =-858325a(10) =2032924a(11) =-4621313a(12) =10137716a(13) =-21545639a(14) =44525987a(15) =-89757843a(16) =176925625a(17) =-341688495a(18) =647687314a(19) =-1206921212a(20) =2213842874a(21) =-4001882220a(22) =7136374179