Half the number of (n+1)X5 0..2 arrays with every 2X2 subblock having two or three distinct clockwise edge differences.
A210272
Half the number of (n+1)X5 0..2 arrays with every 2X2 subblock having two or three distinct clockwise edge differences.
Terms
- a(0) =16620a(1) =2307956a(2) =321050788a(3) =44678808183
External references
- oeis: A210272