Number of nX7 0..3 arrays avoiding the pattern z-2 z-1 z in any row, column or nw-to-se diagonal.
A206899
Number of nX7 0..3 arrays avoiding the pattern z-2 z-1 z in any row, column or nw-to-se diagonal.
Terms
- a(0) =14124a(1) =199487376
External references
- oeis: A206899