Refined powered-Catalan conjecture for 23-1-4-avoiding permutations
Refined powered-Catalan conjecture for 23-1-4-avoiding permutations
For , let be the permutations of length avoiding the generalized pattern , and let be the number of right-to-left minima. Let be the numbers defined by the recurrence in Equation. Refined powered-Catalan conjecture. The number of permutations in with right-to-left minima is . This refines the preceding equinumerosity conjecture by predicting the distribution according to right-to-left minima, but the source does not state whether it has been resolved.
Sources & referencesView supporting material
Primary source
Nicholas R. Beaton, Mathilde Bouvel, Veronica Guerrini and Simone Rinaldi, “Enumerating five families of pattern-avoiding inversion sequences; and introducing the powered Catalan numbers”, arXiv:1808.04114 (2018).
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