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

Terms

a(0) =1a(1) =-1a(2) =1a(3) =-1a(4) =2a(5) =-3a(6) =3a(7) =-4a(8) =6a(9) =-7a(10) =8a(11) =-10a(12) =13a(13) =-16a(14) =18a(15) =-22a(16) =28a(17) =-33a(18) =38a(19) =-45a(20) =55a(21) =-65a(22) =74a(23) =-87a(24) =104a(25) =-121a(26) =138a(27) =-160a(28) =188a(29) =-217