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

Terms

a(0) =1a(1) =1a(2) =0a(3) =2a(4) =-1a(5) =4a(6) =-2a(7) =5a(8) =-1a(9) =4a(10) =3a(11) =-2a(12) =16a(13) =-21a(14) =47a(15) =-62a(16) =104a(17) =-131a(18) =191a(19) =-229a(20) =304a(21) =-344a(22) =420a(23) =-437a(24) =477a(25) =-413a(26) =336a(27) =-76a(28) =-270a(29) =927