1/4 the number of (n+1)X7 0..3 arrays with every 2X2 subblock having one or three distinct clockwise edge differences.
A210075
1/4 the number of (n+1)X7 0..3 arrays with every 2X2 subblock having one or three distinct clockwise edge differences.
Terms
- a(0) =2358878a(1) =2593403383
External references
- oeis: A210075