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Omni-MATH / A [i]permutation[/i] of the set of positive integers [n]=1,2,...,n is a sequence (a₁,a₂,…,a_(n)) such that each element of [n] appears precisely one time as a term of the sequenc… · Discussion

Discussing A [i]permutation[/i] of the set of positive integers [n]={1,2,...,n} is a sequence (a₁,a₂,…,a_(n)) such that each element of [n] appears precisely one time as a term of the sequenc… · Omni-MATH

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