Expansion of (phi(q) / phi(q^4))^2 in powers of q where phi() is a Ramanujan theta function.

Terms

a(0) =1a(1) =4a(2) =4a(3) =0a(4) =0a(5) =-8a(6) =-16a(7) =0a(8) =0a(9) =20a(10) =56a(11) =0a(12) =0a(13) =-40a(14) =-160a(15) =0a(16) =0a(17) =72a(18) =404a(19) =0a(20) =0a(21) =-128a(22) =-944a(23) =0a(24) =0a(25) =220a(26) =2072a(27) =0a(28) =0a(29) =-360