Number of lower triangles of an n X n 0..5 array with each element differing from all of its diagonal, vertical, antidiagonal and horizontal neighbors by two or less.
A195245
Number of lower triangles of an n X n 0..5 array with each element differing from all of its diagonal, vertical, antidiagonal and horizontal neighbors by two or less.
Terms
- a(0) =6a(1) =84a(2) =3776a(3) =533142a(4) =237368212a(5) =333437946202
External references
- oeis: A195245