Number of nX3 0..3 arrays avoiding the pattern z-2 z-1 z in any row, column or nw-to-se diagonal.
A206895
Number of nX3 0..3 arrays avoiding the pattern z-2 z-1 z in any row, column or nw-to-se diagonal.
Terms
- a(0) =62a(1) =3844a(2) =211548a(3) =11745962a(4) =649804846a(5) =35974254384
External references
- oeis: A206895