Number of distinct necklaces with p beads of two possible colors, allowing turning over, p being a prime greater than 2.
A104137
Number of distinct necklaces with p beads of two possible colors, allowing turning over, p being a prime greater than 2.
Terms
- a(0) =4a(1) =8a(2) =18a(3) =126a(4) =380a(5) =4112a(6) =14310a(7) =184410a(8) =9272780a(9) =34669602a(10) =1857545300a(11) =26818405352a(12) =102282248574
External references
- oeis: A104137