Expansion of Product_{m>=1} (1+m*q^m)^28.

Terms

a(0) =1a(1) =28a(2) =434a(3) =4928a(4) =45619a(5) =363804a(6) =2584078a(7) =16712728a(8) =99967861a(9) =559436136a(10) =2954968758a(11) =14835042600a(12) =71185664242a(13) =327991293140