932688domain: NAppears in sequencesNumber of 6 X n 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 0 1 and 1 0 1 vertically.at n=7A207457Number of active (ON, black) cells at stage 2^n-1 of the two-dimensional cellular automaton defined by "Rule 315", based on the 5-celled von Neumann neighborhood.at n=9A270565