Number of primitive (=aperiodic) 2n-bead necklaces with colored beads of exactly n different colors.
A254083
Number of primitive (=aperiodic) 2n-bead necklaces with colored beads of exactly n different colors.
Terms
- a(0) =1a(1) =0a(2) =3a(3) =89a(4) =5100a(5) =510288a(6) =79419060a(7) =17758540440
External references
- oeis: A254083