Number of n X 4 0..4 arrays with each element equal to the number its horizontal and vertical neighbors less than or equal to itself.

A196540

Number of n X 4 0..4 arrays with each element equal to the number its horizontal and vertical neighbors less than or equal to itself.

Terms

    a(0) =7a(1) =461a(2) =11200a(3) =340286a(4) =11955804a(5) =492164626a(6) =19551716726a(7) =762304199460

External references