Number of 3Xn 0..2 arrays avoiding the pattern z-2 z-1 z in any row, column, nw-to-se diagonal or ne-to-sw antidiagonal.
A207551
Number of 3Xn 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) =26a(1) =676a(2) =14974a(3) =327518a(4) =7169168a(5) =156957792a(6) =3434478282a(7) =75148438711
External references
- oeis: A207551