247631domain: NAppears in sequencesa(n) = floor(11^n/8^n).at n=39A094995Number of nX7 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 1 0 and 1 0 1 vertically.at n=4A207466Number of 5Xn 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 1 0 and 1 0 1 vertically.at n=6A207469