6831104domain: NAppears in sequencesE.g.f. equals the series reversion of arctan(x) / exp(x).at n=7A227465Decimal representation of the x-axis, from the left edge to the origin, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 270", based on the 5-celled von Neumann neighborhood.at n=22A280465