11184787domain: NAppears in sequencesa(n) = Sum_{i=0..n} Sum_{j=0..n} A026637(i,j).at n=22A026646Decimal 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 62", based on the 5-celled von Neumann neighborhood.at n=25A278667