Half the number of (n+1)X8 0..3 arrays with every 2X2 subblock having at most one duplicate clockwise edge difference.
A210299
Half the number of (n+1)X8 0..3 arrays with every 2X2 subblock having at most one duplicate clockwise edge difference.
Terms
- a(0) =872455004
External references
- oeis: A210299