30147535858domain: NAppears in sequencesNumber of n X 4 0..2 arrays avoiding the pattern z+1 z+1 z horizontally and z-1 z-1 z vertically.at n=5A207354Number of nX6 0..2 arrays avoiding the pattern z+1 z+1 z horizontally and z-1 z-1 z vertically.at n=3A207356