87274812625domain: NAppears in sequencesE.g.f. S(x) satisfies: S(x) = Integral (1 + S(x)^2)^(5/2) dx.at n=6A281427E.g.f.: C(x) + S(x) = exp( Integral C(x)^4 dx ) where C(x) and S(x) is described by A281428 and A281427, respectively.at n=13A281429