482455domain: NAppears in sequencesE.g.f. satisfies A(x) = sinh(x + A(x)^2/2).at n=7A215094Decimal representation of the x-axis, from the origin to the right edge, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 457", based on the 5-celled von Neumann neighborhood.at n=18A282362