2544494081domain: NAppears in sequencesE.g.f. exp( Integral B(x) dx ) = (A(x) + C(x))/8 where A(x) = 3 + Integral B(x)*C(x) dx and C(x) = 5 + Integral A(x)*B(x) dx such that A(x)^2 - 3^2 = B(x)^2 - 4^2 = C(x)^2 - 5^2.at n=8A323568