781712

Appears in sequences

• Number of ways to color cells of an n X n square with 2 colors so that no subsquare of side > 1 has all corners same color.at n=5A018803
• Number A(n,k) of 2-colorings of a k X n rectangle such that no nontrivial subsquare has monochromatic corners; square array A(n,k), n>=0, k>=0, read by antidiagonals.at n=60A255256
• Number of 2-colorings of a 5 X n rectangle such that no nontrivial subsquare has monochromatic corners.at n=5A255262