4192763domain: NAppears in sequencesa(n) = Sum_{k=0..n} C(n-k, floor(k/2))*2^k.at n=22A097334Decimal 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 379", based on the 5-celled von Neumann neighborhood.at n=21A281634