Number of 7Xn 0..7+n-2 arrays with upper left zero and lower right 7+n-2 and each element differing from its horizontal and antidiagonal neighbors by one or two.
A265472
Number of 7Xn 0..7+n-2 arrays with upper left zero and lower right 7+n-2 and each element differing from its horizontal and antidiagonal neighbors by one or two.
Terms
- a(0) =16807a(1) =448920a(2) =226627855a(3) =90139418667
External references
- oeis: A265472