504121651domain: NAppears in sequencesNumber of (n+1)X(2+1) 0..2 arrays with the maximum plus the upper median of every 2X2 subblock equal.at n=6A236896Number of (n+1) X (7+1) 0..2 arrays with the maximum plus the upper median of every 2 X 2 subblock equal.at n=1A236901