684469520

Appears in sequences

• Half the number of (n+1) X 3 0..2 arrays with every 2 X 2 subblock having at most one duplicate clockwise edge difference.at n=5A209945
• Half the number of (n+1)X7 0..2 arrays with every 2X2 subblock having at most one duplicate clockwise edge difference.at n=1A209949
• T(n,k) is the half the number of (n+1) X (k+1) 0..2 arrays with every 2 X 2 subblock having at most one duplicate clockwise edge difference.at n=22A209951
• T(n,k) is the half the number of (n+1) X (k+1) 0..2 arrays with every 2 X 2 subblock having at most one duplicate clockwise edge difference.at n=26A209951