3908531208domain: NAppears in sequencesNumber of nX3 0..2 arrays avoiding the pattern z-2 z-1 z in any row, column or nw-to-se diagonal.at n=6A207312Number of nX7 0..2 arrays avoiding the pattern z-2 z-1 z in any row, column or nw-to-se diagonal.at n=2A207316