Expansion of Product_{n>=0} (1 + q*(-q^2)^n) / (1 - q*(-q^2)^n).

Terms

a(0) =1a(1) =2a(2) =2a(3) =0a(4) =-2a(5) =0a(6) =4a(7) =4a(8) =-2a(9) =-6a(10) =0a(11) =8a(12) =4a(13) =-8a(14) =-8a(15) =8a(16) =14a(17) =-4a(18) =-18a(19) =0a(20) =24a(21) =8a(22) =-28a(23) =-20a(24) =28a(25) =34a(26) =-24a(27) =-48a(28) =16a(29) =64