Expansion of Product_{k>=1} 1/(1 + k^2*x^k).

Terms

a(0) =1a(1) =-1a(2) =-3a(3) =-6a(4) =6a(5) =5a(6) =40a(7) =11a(8) =226a(9) =-516a(10) =-186a(11) =-844a(12) =3731a(13) =-3734a(14) =814a(15) =-33819a(16) =85660a(17) =-46022a(18) =210342a(19) =-411678a(20) =593996a(21) =-2980156a(22) =2076721a(23) =-3445584a(24) =40785410a(25) =-37503158a(26) =98085a(27) =-271846888a(28) =336918770a(29) =-295108832