Number of (3+1)X(n+1) 0..2 arrays with every element both >= and <= some horizontal, diagonal or antidiagonal neighbor.
A232417
Number of (3+1)X(n+1) 0..2 arrays with every element both >= and <= some horizontal, diagonal or antidiagonal neighbor.
Terms
- a(0) =611a(1) =48971a(2) =2189991a(3) =119994763a(4) =7049296087a(5) =406420576301
External references
- oeis: A232417