Expansion of f(-x, -x^4) / f(x, x^4) in powers of x where f(,) is Ramanujan's two-variable theta function.
A215594
Expansion of f(-x, -x^4) / f(x, x^4) in powers of x where f(,) is Ramanujan's two-variable theta function.
Terms
- a(0) =1a(1) =-2a(2) =2a(3) =-2a(4) =0a(5) =2a(6) =-4a(7) =6a(8) =-4a(9) =0a(10) =6a(11) =-12a(12) =14a(13) =-10a(14) =0a(15) =14a(16) =-26a(17) =30a(18) =-22a(19) =0a(20) =28a(21) =-52a(22) =60a(23) =-42a(24) =0a(25) =54a(26) =-100a(27) =112a(28) =-78a(29) =0
External references
- oeis: A215594