Number of (n+1) X (n+1) 0..2 arrays with the maximum plus the lower median minus the upper median minus the minimum of every 2 X 2 subblock differing from its horizontal and vertical neighbors by exactly one.

A236989

Number of (n+1) X (n+1) 0..2 arrays with the maximum plus the lower median minus the upper median minus the minimum of every 2 X 2 subblock differing from its horizontal and vertical neighbors by exactly one.