Number of (n+1) X (3+1) 0..2 arrays with the difference of the upper median and minimum value of each 2 X 2 subblock in lexicographically nondecreasing order columnwise and nonincreasing rowwise.

A235830

Number of (n+1) X (3+1) 0..2 arrays with the difference of the upper median and minimum value of each 2 X 2 subblock in lexicographically nondecreasing order columnwise and nonincreasing rowwise.