= Necklace (combinatorics)
{wiki=Necklace_(combinatorics)}
In combinatorics, a "necklace" is a mathematical object that represents a circular arrangement of beads (or other distinguishing objects) where rotations and reflections are considered equivalent. Necklaces can be used to model problems involving the arrangement of identical or distinct objects in a way that takes into account the symmetry of the arrangement. \#\#\# Key Points about Necklaces: 1. **Rotational Symmetry**: A necklace can be rotated, and arrangements that are rotations of one another are considered identical.
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