Expansion of phi(q^2) / phi(q) in powers of q where phi() is a Ramanujan theta function.

Terms

a(0) =1a(1) =-2a(2) =6a(3) =-12a(4) =22a(5) =-40a(6) =68a(7) =-112a(8) =182a(9) =-286a(10) =440a(11) =-668a(12) =996a(13) =-1464a(14) =2128a(15) =-3056a(16) =4342a(17) =-6116a(18) =8538a(19) =-11820a(20) =16248a(21) =-22176a(22) =30068a(23) =-40528a(24) =54308a(25) =-72378a(26) =95976a(27) =-126648a(28) =166352a(29) =-217560