Number of nX6 0..3 arrays with new values 0..3 introduced in row major order and no element equal to any knight-move neighbor (colorings ignoring permutations of colors).
A208351
Number of nX6 0..3 arrays with new values 0..3 introduced in row major order and no element equal to any knight-move neighbor (colorings ignoring permutations of colors).
Terms
- a(0) =187a(1) =69988a(2) =1901508a(3) =103672036a(4) =8045978096a(5) =647640659639
External references
- oeis: A208351