Number of n-bead necklaces labeled with numbers -5..5 allowing reversal, with sum zero.
A208822
Number of n-bead necklaces labeled with numbers -5..5 allowing reversal, with sum zero.
Terms
- a(0) =1a(1) =6a(2) =18a(3) =131a(4) =905a(5) =7582a(6) =65134a(7) =587682a(8) =5416897a(9) =50959134a(10) =486441796a(11) =4701644087a(12) =45911470685
External references
- oeis: A208822