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

Terms

a(0) =1a(1) =-1a(2) =-3a(3) =-2a(4) =1a(5) =9a(6) =11a(7) =15a(8) =6a(9) =-18a(10) =-46a(11) =-54a(12) =-115a(13) =-101a(14) =32a(15) =82a(16) =182a(17) =455a(18) =804a(19) =915a(20) =434a(21) =-114a(22) =196a(23) =-974a(24) =-3507a(25) =-6913a(26) =-7555a(27) =-5081a(28) =-4480a(29) =-7463