80413567317domain: NAppears in sequencesE.g.f. C(x) + S(x), such that C(x)^2 - S(x)^2 = 1, 3*C(x)^2 - 2*D(x)^3 = 1, and D(x) = 1 + Integral S(x)*C(x) dx.at n=15A278749E.g.f. S(x) = Integral C(x)*D(x)^2 dx, where C(x)^2 - S(x)^2 = 1 and 3*C(x)^2 - 2*D(x)^3 = 1.at n=7A278750