Number of nX3 0..2 arrays avoiding the pattern z-1 z-1 z in any row, column, nw-to-se diagonal or ne-to-sw antidiagonal.
A207203
Number of nX3 0..2 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) =25a(1) =625a(2) =11047a(3) =193260a(4) =3345883a(5) =58023139a(6) =1009600274a(7) =17573182050a(8) =306058145014
External references
- oeis: A207203