262314968432domain: NAppears in sequencesNumber of (n+1)X(6+1) 0..2 arrays with no 2X2 subblock having x11-x00 less than x10-x01.at n=4A251063Number of (5+1)X(n+1) 0..2 arrays with no 2X2 subblock having x11-x00 less than x10-x01.at n=5A251069