Number of nX6 0..3 arrays avoiding the pattern z-2 z-1 z in any row, column or nw-to-se diagonal.
A206898
Number of nX6 0..3 arrays avoiding the pattern z-2 z-1 z in any row, column or nw-to-se diagonal.
Terms
- a(0) =3636a(1) =13220496a(2) =35974254384
External references
- oeis: A206898