Number of 3Xn 0..3 arrays avoiding the pattern z-1 z-1 z in any row, column, nw-to-se diagonal or ne-to-sw antidiagonal.
A206975
Number of 3Xn 0..3 arrays avoiding the pattern z-1 z-1 z in any row, column, nw-to-se diagonal or ne-to-sw antidiagonal.
Terms
- a(0) =61a(1) =3721a(2) =180294a(3) =8685113a(4) =419203246a(5) =20232472915a(6) =976568167285
External references
- oeis: A206975