11045757

Appears in sequences

• 1/6 of the number of ways of 3-coloring an (n-2) X n grid.at n=4A078102
• Number of nX5 0..2 arrays with new values 0..2 introduced in row major order and no element equal to any horizontal or vertical neighbor (colorings ignoring permutations of colors).at n=6A207994
• Number of nX7 0..2 arrays with new values 0..2 introduced in row major order and no element equal to any horizontal or vertical neighbor (colorings ignoring permutations of colors).at n=4A207996