3118943536domain: NAppears in sequencesNumber of binary arrangements without adjacent 1's on n X n array connected n-s nw-se.at n=6A067964Number of nX7 binary arrays without the pattern 0 0 diagonally or vertically.at n=6A188704Number of 7Xn binary arrays without the pattern 0 0 diagonally or vertically.at n=6A188711