3501670714domain: NAppears in sequencesE.g..f. A(x) satisfies: 1 = ...(((( A(x) - a(2)*x )^2 - a(3)*x^2 )^3 - a(4)*x^3 )^4 - a(5)*x^4 )^5 -..., with a(0) = a(1) = 1.at n=13A277039