Number of 4Xn 0..4+n-2 arrays with upper left zero and lower right 4+n-2 and each element differing from its horizontal and antidiagonal neighbors by one or two.
A265469
Number of 4Xn 0..4+n-2 arrays with upper left zero and lower right 4+n-2 and each element differing from its horizontal and antidiagonal neighbors by one or two.
Terms
- a(0) =16a(1) =232a(2) =9808a(3) =398508a(4) =17481072a(5) =593770274a(6) =18032679492a(7) =582513489941
External references
- oeis: A265469