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

Terms

a(0) =1a(1) =-3a(2) =9a(3) =-22a(4) =48a(5) =-99a(6) =194a(7) =-363a(8) =657a(9) =-1155a(10) =1977a(11) =-3312a(12) =5443a(13) =-8787a(14) =13968a(15) =-21894a(16) =33873a(17) =-51795a(18) =78345a(19) =-117312a(20) =174033a(21) =-255945a(22) =373353a(23) =-540486a(24) =776848a(25) =-1109040a(26) =1573209a(27) =-2218198a(28) =3109713a(29) =-4335840