Number of (n+1)X(3+1) 0..2 arrays with every element both >= and <= some horizontal or vertical neighbor.
A232119
Number of (n+1)X(3+1) 0..2 arrays with every element both >= and <= some horizontal or vertical neighbor.
Terms
- a(0) =611a(1) =26029a(2) =1060647a(3) =44229031a(4) =1841606457a(5) =76671235227
External references
- oeis: A232119