Number of inequivalent bracelets from A006840 with the additional equivalence condition that subsets of 1-beads whose position vectors add to zero can be removed. Different values of vector sums of (-1)^(k/n) with k taking n values in 1..2n up to rotation and reflection.
A077079
Number of inequivalent bracelets from A006840 with the additional equivalence condition that subsets of 1-beads whose position vectors add to zero can be removed. Different values of vector sums of (-1)^(k/n) with k taking n values in 1..2n up to rotation and reflection.
Terms
- a(0) =1a(1) =2a(2) =3a(3) =6a(4) =11a(5) =20a(6) =53a(7) =130a(8) =199a(9) =784a(10) =2135a(11) =2649a(12) =15695a(13) =43085a(14) =32764
External references
- oeis: A077079