Number of n-bead necklaces of n colors allowing reversal, with no adjacent beads having the same color.
A208538
Number of n-bead necklaces of n colors allowing reversal, with no adjacent beads having the same color.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =21a(4) =102a(5) =1505a(6) =19995a(7) =365260a(8) =7456596a(9) =174489813a(10) =4545454545a(11) =130773238871
External references
- oeis: A208538