Enumeration of Dumont permutations avoiding certain four-letter patternsArticle
Authors: Alexander Burstein ; Opel Jones
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Alexander Burstein;Opel Jones
In this paper, we enumerate Dumont permutations of the fourth kind avoiding
or containing certain permutations of length 4. We also conjecture a
Wilf-equivalence of two 4-letter patterns on Dumont permutations of the first
kind.