Expansion of Product_{m >=1} (1+q^m)^31.

Terms

a(0) =1a(1) =31a(2) =496a(3) =5487a(4) =47337a(5) =340039a(6) =2118385a(7) =11763911a(8) =59384158a(9) =276491170a(10) =1200703594a(11) =4906332242a(12) =18998567031a(13) =70120824201a(14) =247873586247a(15) =842625902072