Number of n-bead necklaces labeled with numbers -5..5 allowing reversal, with sum zero with no three beads in a row equal.
A209341
Number of n-bead necklaces labeled with numbers -5..5 allowing reversal, with sum zero with no three beads in a row equal.
Terms
- a(0) =1a(1) =6a(2) =17a(3) =128a(4) =883a(5) =7358a(6) =62853a(7) =563109a(8) =5153746a(9) =48127107a(10) =456011561a(11) =4374662802a(12) =42398844001
External references
- oeis: A209341