374571613718domain: NAppears in sequencesNumber of nX4 0..3 arrays avoiding the pattern z+1 z+1 z horizontally and z-1 z-1 z vertically.at n=4A207578Number of nX5 0..3 arrays avoiding the pattern z+1 z+1 z horizontally and z-1 z-1 z vertically.at n=3A207579