1048196domain: NAppears in sequencesA007318 * [1, 1, -1, 1, 1, 1, ...].at n=20A142974Decimal 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 205", based on the 5-celled von Neumann neighborhood.at n=19A279824