1/4 the number of (n+1)X7 0..3 arrays with every 2X2 subblock having distinct clockwise edge differences.
A209714
1/4 the number of (n+1)X7 0..3 arrays with every 2X2 subblock having distinct clockwise edge differences.
Terms
- a(0) =451762a(1) =140274002a(2) =41170011836
External references
- oeis: A209714