Number of lower triangles of an n X n 0..7 array with each element differing from all of its diagonal, vertical, antidiagonal and horizontal neighbors by two or less.
A195247
Number of lower triangles of an n X n 0..7 array with each element differing from all of its diagonal, vertical, antidiagonal and horizontal neighbors by two or less.
Terms
- a(0) =8a(1) =122a(2) =5870a(3) =886084a(4) =421064386a(5) =631149414120
External references
- oeis: A195247