Expansion of Product_{m>=1} (1+q^m)^(-15).

Terms

a(0) =1a(1) =-15a(2) =105a(3) =-470a(4) =1590a(5) =-4593a(6) =12160a(7) =-30075a(8) =69780a(9) =-153750a(10) =325728a(11) =-667020a(12) =1323915a(13) =-2557140a(14) =4824630a(15) =-8912759a(16) =16148505a(17) =-28746945a(18) =50364835a(19) =-86956260a(20) =148098384a(21) =-249060745a(22) =413975085a(23) =-680602545