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

Terms

a(0) =1a(1) =-2a(2) =0a(3) =-2a(4) =5a(5) =-2a(6) =7a(7) =-6a(8) =11a(9) =-20a(10) =13a(11) =-32a(12) =31a(13) =-50a(14) =60a(15) =-70a(16) =124a(17) =-112a(18) =192a(19) =-198a(20) =295a(21) =-364a(22) =422a(23) =-616a(24) =661a(25) =-1002a(26) =1034a(27) =-1500a(28) =1737a(29) =-2208