5485899329domain: NAppears in sequencesNumber of (n+1) X (n+1) 0..2 arrays with the maximum plus the upper median minus the minimum of every 2 X 2 subblock equal.at n=4A237801Number of (n+1)X(5+1) 0..2 arrays with the maximum plus the upper median minus the minimum of every 2X2 subblock equal.at n=4A237806