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

A232253

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

Terms

    a(0) =1287a(1) =96999a(2) =7258599a(3) =544777651a(4) =40896843985

External references