Expansion of f(-q) / f(q) in powers of q where f() is a Ramanujan theta function.

Terms

a(0) =1a(1) =-2a(2) =2a(3) =-4a(4) =6a(5) =-8a(6) =12a(7) =-16a(8) =22a(9) =-30a(10) =40a(11) =-52a(12) =68a(13) =-88a(14) =112a(15) =-144a(16) =182a(17) =-228a(18) =286a(19) =-356a(20) =440a(21) =-544a(22) =668a(23) =-816a(24) =996a(25) =-1210a(26) =1464a(27) =-1768a(28) =2128a(29) =-2552