Number of (4+1)X(n+1) 0..2 arrays with every element both >= and <= some horizontal or antidiagonal neighbor.

A232261

Number of (4+1)X(n+1) 0..2 arrays with every element both >= and <= some horizontal or antidiagonal neighbor.

Terms

    a(0) =723a(1) =52779a(2) =4987471a(3) =544777651a(4) =60698037193

External references