Expansion of Product_{k>=1} (1 + x^(8*k))/(1 + x^k).

Terms

a(0) =1a(1) =-1a(2) =0a(3) =-1a(4) =1a(5) =-1a(6) =1a(7) =-1a(8) =3a(9) =-3a(10) =2a(11) =-3a(12) =4a(13) =-4a(14) =4a(15) =-5a(16) =8a(17) =-8a(18) =7a(19) =-9a(20) =11a(21) =-12a(22) =12a(23) =-14a(24) =20a(25) =-21a(26) =19a(27) =-24a(28) =28a(29) =-30