Expansion of Product_{m>=1} (1+m*q^m)^30.

Terms

a(0) =1a(1) =30a(2) =495a(3) =5950a(4) =58065a(5) =486606a(6) =3622850a(7) =24508320a(8) =153065370a(9) =893004950a(10) =4910926857a(11) =25638586740a(12) =127801113520a(13) =611122860870