Number of nX7 0..3 arrays avoiding the pattern z z+1 z in any row, column, diagonal or antidiagonal.
A206796
Number of nX7 0..3 arrays avoiding the pattern z z+1 z in any row, column, diagonal or antidiagonal.
Terms
- a(0) =12793a(1) =163660849a(2) =988006480837
External references
- oeis: A206796