547835domain: NAppears in sequencesa(n) = 2^(n+2) + 3^n + 10.at n=12A254365Decimal 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 54", based on the 5-celled von Neumann neighborhood.at n=21A278601