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

Terms

a(0) =1a(1) =-2a(2) =5a(3) =-12a(4) =24a(5) =-46a(6) =86a(7) =-152a(8) =262a(9) =-442a(10) =725a(11) =-1168a(12) =1852a(13) =-2886a(14) =4436a(15) =-6736a(16) =10103a(17) =-14994a(18) =22040a(19) =-32092a(20) =46336a(21) =-66380a(22) =94378a(23) =-133256a(24) =186926a(25) =-260576a(26) =361126a(27) =-497716a(28) =682340a(29) =-930774