Half the number of (n+1)X8 0..2 arrays with every 2X2 subblock having two or four distinct clockwise edge differences.
A209510
Half the number of (n+1)X8 0..2 arrays with every 2X2 subblock having two or four distinct clockwise edge differences.
Terms
- a(0) =6561a(1) =242889a(2) =9225765a(3) =353991129a(4) =13642432110a(5) =526815563193
External references
- oeis: A209510