Number of lower triangles of an n X n 0..6 array with no element differing from any of its horizontal or vertical neighbors by more than one.
A194929
Number of lower triangles of an n X n 0..6 array with no element differing from any of its horizontal or vertical neighbors by more than one.
Terms
- a(0) =7a(1) =53a(2) =899a(3) =33255a(4) =2698979a(5) =480403525a(6) =187700534197
External references
- oeis: A194929