Expansion of g.f. (theta_3(x) - 1)/2 * Product_{n>=1} (1 - x^(4*n-2)) / (1 - x^(4*n)).

Terms

a(0) =1a(1) =0a(2) =-1a(3) =1a(4) =1a(5) =-1a(6) =-2a(7) =1a(8) =4a(9) =-2a(10) =-5a(11) =3a(12) =6a(13) =-4a(14) =-9a(15) =6a(16) =13a(17) =-8a(18) =-17a(19) =11a(20) =21a(21) =-15a(22) =-28a(23) =19a(24) =39a(25) =-25a(26) =-49a(27) =33a(28) =60a(29) =-42