5118051860domain: NAppears in sequencesNumber of (n+1) X (n+1) 0..2 arrays with the maximum plus the lower median minus the upper median of every 2 X 2 subblock equal.at n=4A237091Number of (n+1) X (5+1) 0..2 arrays with the maximum plus the lower median minus the upper median of every 2 X 2 subblock equal.at n=4A237096