Number of 7Xn 0..2 arrays avoiding the pattern z-2 z-1 z in any row, column, nw-to-se diagonal or ne-to-sw antidiagonal.
A207555
Number of 7Xn 0..2 arrays avoiding the pattern z-2 z-1 z in any row, column, nw-to-se diagonal or ne-to-sw antidiagonal.
Terms
- a(0) =1791a(1) =3207681a(2) =3323115736
External references
- oeis: A207555