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

Terms

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