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keisanHigh-precision calculations for everyday life and work

Bracelet Permutations

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Calculates the number of arrangements of n distinct beads in a circle, treating rotations and reflections as equivalent.
Number of items to arrange: n
Number of Arrangements 
\(\normalsize Necklace\ Permutation\\ (1)\ {\Large\frac{n!}{n}} \div 2= \large\frac{(n-1)!}{2}\\ \)

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