Number of (n+1)X(1+1) 0..2 arrays with every element both >= and <= some horizontal, vertical, diagonal or antidiagonal neighbor.
A232345
Number of (n+1)X(1+1) 0..2 arrays with every element both >= and <= some horizontal, vertical, diagonal or antidiagonal neighbor.
Terms
- a(0) =21a(1) =207a(2) =1461a(3) =10503a(4) =77613a(5) =575087a(6) =4251717a(7) =31416759a(8) =232180893a(9) =1716017023a(10) =12682748597a(11) =93735029639a(12) =692772171789
External references
- oeis: A232345