4907807434domain: NAppears in sequencesNumber of (n+1)X(2+1) 0..3 arrays with the maximum plus the lower median of every 2X2 subblock equal.at n=6A237144Number of (n+1) X (7+1) 0..3 arrays with the maximum plus the lower median of every 2 X 2 subblock equal.at n=1A237149