Number of lower triangles of an n X n 0..7 array with each element differing from all of its horizontal and vertical neighbors by one.
A194997
Number of lower triangles of an n X n 0..7 array with each element differing from all of its horizontal and vertical neighbors by one.
Terms
- a(0) =8a(1) =26a(2) =138a(3) =1104a(4) =13754a(5) =261324a(6) =7686580a(7) =346018484a(8) =24069199390
External references
- oeis: A194997