Expansion of Product_{m>=1} (1-m*q^m)^-13.

Terms

a(0) =1a(1) =13a(2) =117a(3) =832a(4) =5109a(5) =28054a(6) =141401a(7) =664287a(8) =2943460a(9) =12404535a(10) =50050910a(11) =194348193a(12) =729316796a(13) =2654041235a(14) =9393084103a(15) =32409549367a(16) =109246771179a(17) =360409934599