6466176

Appears in sequences

• a(n) is half the number of (n+1) X 2 0..2 arrays with every 2 X 2 subblock having at most one duplicate clockwise edge difference.at n=6A209944
• Half the number of (n+1)X8 0..2 arrays with every 2X2 subblock having at most one duplicate clockwise edge difference.at n=0A209950
• 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=21A209951
• 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=27A209951