Number of (n+1) X (3+1) 0..2 arrays with every element both >= and <= some horizontal, diagonal or antidiagonal neighbor.
A232409
Number of (n+1) X (3+1) 0..2 arrays with every element both >= and <= some horizontal, diagonal or antidiagonal neighbor.
Terms
- a(0) =973a(1) =44971a(2) =2189991a(3) =107913855a(4) =5322933313a(5) =262249675165
External references
- oeis: A232409