61289190

Appears in sequences

• Half the number of (n+1)X4 0..2 arrays with every 2X2 subblock having exactly one duplicate clockwise edge difference.at n=3A209791
• Half the number of (n+1)X5 0..2 arrays with every 2X2 subblock having exactly one duplicate clockwise edge difference.at n=2A209792
• T(n,k)=Half the number of (n+1)X(k+1) 0..2 arrays with every 2X2 subblock having exactly one duplicate clockwise edge difference.at n=17A209796
• T(n,k)=Half the number of (n+1)X(k+1) 0..2 arrays with every 2X2 subblock having exactly one duplicate clockwise edge difference.at n=18A209796