Expansion of Product_{k>0} (1+k^2*x^k)^(1/k).

Terms

a(0) =1a(1) =1a(2) =2a(3) =5a(4) =5a(5) =13a(6) =20a(7) =32a(8) =-2a(9) =107a(10) =149a(11) =129a(12) =-108a(13) =-262a(14) =606a(15) =4273a(16) =-1001a(17) =-1150a(18) =-8147a(19) =-25864a(20) =1793a(21) =131821a(22) =236852a(23) =170299a(24) =-1457515a(25) =-1298382a(26) =-696074a(27) =4852276a(28) =13381975a(29) =9282183