Number of n-bead necklaces labeled with numbers -n..n not allowing reversal, with sum zero with no three beads in a row equal.
A208937
Number of n-bead necklaces labeled with numbers -n..n not allowing reversal, with sum zero with no three beads in a row equal.
Terms
- a(0) =1a(1) =3a(2) =12a(3) =122a(4) =1722a(5) =33468a(6) =817362a(7) =24184890a(8) =841286276a(9) =33675904820
External references
- oeis: A208937