Expansion of (f(-x^2) / phi(-x^3))^2 in powers of x where phi(), f() are Ramanujan theta functions.

Terms

a(0) =1a(1) =0a(2) =-2a(3) =4a(4) =-1a(5) =-8a(6) =14a(7) =-4a(8) =-23a(9) =40a(10) =-10a(11) =-60a(12) =98a(13) =-24a(14) =-140a(15) =224a(16) =-54a(17) =-304a(18) =478a(19) =-112a(20) =-627a(21) =968a(22) =-224a(23) =-1236a(24) =1884a(25) =-432a(26) =-2346a(27) =3540a(28) =-801a(29) =-4320