-194263943664domain: ZAppears in sequencesG.f. satisfies: A(x) = 1/AGM(1, 1 - 8*x/A(x) ).at n=40A158100G.f. satisfies: A(x^2) = -4*x + 1/AGM(1, 1 - 8*x/(A(x^2) + 4*x) ).at n=20A158101