Number of (n+1)X(n+1) 0..2 arrays with every element both >= and <= some horizontal, diagonal or antidiagonal neighbor.
A232407
Number of (n+1)X(n+1) 0..2 arrays with every element both >= and <= some horizontal, diagonal or antidiagonal neighbor.
Terms
- a(0) =15a(1) =2689a(2) =2189991a(3) =16776955943
External references
- oeis: A232407