Number of n-bead necklaces labeled with numbers -5..5 not allowing reversal, with sum zero and three times sum of squares <= n*(5)*(5+1).
A208811
Number of n-bead necklaces labeled with numbers -5..5 not allowing reversal, with sum zero and three times sum of squares <= n*(5)*(5+1).
Terms
- a(0) =1a(1) =4a(2) =19a(3) =141a(4) =1093a(5) =8924a(6) =77053a(7) =692566a(8) =6345907a(9) =59150386a(10) =562643309a(11) =5397588986a(12) =52466338007
External references
- oeis: A208811