Number of (n+1) X (n+1) 0..2 arrays with the upper median plus the lower median minus the minimum of every 2 X 2 subblock equal.

A236781

Number of (n+1) X (n+1) 0..2 arrays with the upper median plus the lower median minus the minimum of every 2 X 2 subblock equal.

Terms

    a(0) =81a(1) =1097a(2) =23675a(3) =1287919a(4) =128004881a(5) =32223974061

External references