Pattern-restricted permutations of small order
Kassie Archer, Robert P. Laudone · arXiv (Cornell University) · 2024
We enumerate 132-avoiding permutations of order 3 in terms of the Catalan and Motzkin generating functions, answering a question of Bóna and Smith from 2019. We also enumerate 231-avoiding permutations that are composed only of 3-cycles, 2-cycles, and fixed points.