Computational Approach to the $SC_{231}$ Consecutive-Pattern-Avoiding Stack Sort
Combinatorics
2026-04-22 v1
Abstract
Defant and Zheng introduced a consecutive-pattern-avoiding stack sort map , where the stack must avoid a consecutive pattern . Seidel and Sun disproved a conjecture in Defant and Zheng's paper about the maximum sort-number of a length permutation under . In this paper, we compute sort-numbers for each permutation of length up to , and we estimate the average sort-numbers up to length . Our results suggest the maximum and average sort-numbers grow faster than linear with respect to for the tested ranges, though the long-term behavior remains unclear. We also prove properties of mathematically, such as a lower bound and a upper bound for the maximum sort-number of length permutations.
Cite
@article{arxiv.2604.18626,
title = {Computational Approach to the $SC_{231}$ Consecutive-Pattern-Avoiding Stack Sort},
author = {Kai Yi},
journal= {arXiv preprint arXiv:2604.18626},
year = {2026}
}
Comments
10 pages, 6 figures