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

Terms

a(0) =1a(1) =2a(2) =2a(3) =10a(4) =18a(5) =36a(6) =86a(7) =150a(8) =326a(9) =608a(10) =1164a(11) =2230a(12) =4046a(13) =7632a(14) =13622a(15) =24868a(16) =44222a(17) =78304a(18) =138312a(19) =240138a(20) =418648a(21) =718292a(22) =1233494a(23) =2097350a(24) =3552370a(25) =5987642a(26) =10026088a(27) =16745600a(28) =27779030a(29) =45970868