Number of (2+1) X (n+1) 0..2 arrays with every element both >= and <= some horizontal or antidiagonal neighbor.
A232259
Number of (2+1) X (n+1) 0..2 arrays with every element both >= and <= some horizontal or antidiagonal neighbor.
Terms
- a(0) =37a(1) =421a(2) =6189a(3) =96999a(4) =1532151a(5) =24091773a(6) =379188715a(7) =5968365535a(8) =93937508717
External references
- oeis: A232259