Number of n-bead necklaces of n colors not allowing reversal, with no adjacent beads having the same color.
A208533
Number of n-bead necklaces of n colors not allowing reversal, with no adjacent beads having the same color.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =24a(4) =204a(5) =2635a(6) =39990a(7) =720916a(8) =14913192a(9) =348684381a(10) =9090909090a(11) =261535848376
External references
- oeis: A208533