Number of nX6 0..n+6-2 arrays with upper left zero and lower right n+6-2 and each element differing from its horizontal and vertical neighbors by one or two.
A265445
Number of nX6 0..n+6-2 arrays with upper left zero and lower right n+6-2 and each element differing from its horizontal and vertical neighbors by one or two.
Terms
- a(0) =29a(1) =2218a(2) =174794a(3) =19827238a(4) =4188662714a(5) =569620472894
External references
- oeis: A265445