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

Terms

a(0) =1a(1) =-1a(2) =0a(3) =-3a(4) =3a(5) =-5a(6) =8a(7) =-10a(8) =22a(9) =-25a(10) =41a(11) =-57a(12) =88a(13) =-126a(14) =168a(15) =-261a(16) =351a(17) =-512a(18) =685a(19) =-984a(20) =1357a(21) =-1865a(22) =2566a(23) =-3485a(24) =4838a(25) =-6459a(26) =8832a(27) =-11831a(28) =16056a(29) =-21404