59730054958domain: NAppears in sequencesNumber of (n+1)X(4+1) 0..2 arrays with no 2X2 subblock having x11-x00 less than x10-x01.at n=5A251061Number of (6+1)X(n+1) 0..2 arrays with no 2X2 subblock having x11-x00 less than x10-x01.at n=3A251070