Expansion of (psi(x^3) / psi(x))^2 in powers of x where psi() is a Ramanujan theta function.

Terms

a(0) =1a(1) =-2a(2) =3a(3) =-4a(4) =7a(5) =-12a(6) =17a(7) =-24a(8) =36a(9) =-52a(10) =71a(11) =-96a(12) =133a(13) =-182a(14) =240a(15) =-316a(16) =420a(17) =-552a(18) =713a(19) =-916a(20) =1182a(21) =-1516a(22) =1920a(23) =-2424a(24) =3063a(25) =-3852a(26) =4806a(27) =-5976a(28) =7430a(29) =-9204