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 one or less.
A195229
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 one or less.
Terms
- a(0) =6a(1) =36a(2) =428a(3) =9982a(4) =459880a(5) =42029278a(6) =7640055854
External references
- oeis: A195229