51086domain: NAppears in sequencesa(n) = a(n-1) + a(floor(n/2))^2 for n > 0, a(0) = 1.at n=12A067868Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 3", based on the 5-celled von Neumann neighborhood.at n=41A269912