Half the number of (n+1)X5 0..3 arrays with every 2X2 subblock having exactly one duplicate clockwise edge difference.
A209783
Half the number of (n+1)X5 0..3 arrays with every 2X2 subblock having exactly one duplicate clockwise edge difference.
Terms
- a(0) =44948a(1) =5719838a(2) =706149734a(3) =89046135210
External references
- oeis: A209783