Number of nX5 0..n+5-2 arrays with upper left zero and lower right n+5-2 and each element differing from its horizontal and vertical neighbors by one or two.
A265444
Number of nX5 0..n+5-2 arrays with upper left zero and lower right n+5-2 and each element differing from its horizontal and vertical neighbors by one or two.
Terms
- a(0) =9a(1) =455a(2) =25069a(3) =744805a(4) =41855199a(5) =4188662714a(6) =268477963202
External references
- oeis: A265444