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Recounting the Odds of an Even Derangement

by T. Arthur Benjamin (Harvey Mudd College) and Curtis T. Bennett (Loyola Marymount University) and Florence Newberger (California State University Longbeach)

This article originally appeared in:
Mathematics Magazine
December, 2005

Subject classification(s): Algebra and Number Theory | Number Theory
Applicable Course(s): 4.4 Combinatorics | 6.1 Probability & Statistics | 7.2 Probability

A theorem on odd and even permutations with no fixed points is discussed.

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