Expansion of Product_{k>=1} (1-x^k)^31.

Terms

a(0) =1a(1) =-31a(2) =434a(3) =-3565a(4) =18445a(5) =-57505a(6) =70091a(7) =227447a(8) =-1241550a(9) =2102730a(10) =1139498a(11) =-11000164a(12) =15185009a(13) =8060465a(14) =-39266925a(15) =11975548a(16) =33735905a(17) =79961555a(18) =-212042635a(19) =-176681400a(20) =762467041a(21) =-231771190a(22) =-762218948a(23) =-59474275a(24) =687626655a(25) =2193123086a(26) =-3317871844