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

Terms

a(0) =1a(1) =-19a(2) =152a(3) =-665a(4) =1862a(5) =-4864a(6) =16891a(7) =-53770a(8) =126654a(9) =-297768a(10) =874703a(11) =-2302800a(12) =5022650a(13) =-11816556a(14) =30449894a(15) =-70624311a(16) =153691133a(17) =-351589585a(18) =812477658a(19) =-1798826901a(20) =3880086254a(21) =-8420178035a(22) =18486176635