1271711747domain: NAppears in sequencesNumber of (n+1)X(7+1) 0..3 arrays with no 2X2 subblock having x11-x00 less than x10-x01.at n=1A251800Number of (2+1)X(n+1) 0..3 arrays with no 2X2 subblock having x11-x00 less than x10-x01.at n=6A251802