85138

Appears in sequences

• Number of (n+1) X 4 binary arrays with every 2 X 2 subblock commuting with each of its horizontal and vertical 2 X 2 subblock neighbors.at n=18A186456
• Number of 2-colorings of a 4 X n rectangle such that no nontrivial subsquare has monochromatic corners.at n=5A255255
• 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=49A255256
• 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=50A255256
• Number of 2-colorings of a 5 X n rectangle such that no nontrivial subsquare has monochromatic corners.at n=4A255262