Gessel-Lucas congruences for sporadic sequences
Number Theory
2023-01-31 v1
Abstract
For each of the known sporadic Ap\'ery-like sequences, we prove congruences modulo that are natural extensions of the Lucas congruences modulo . This extends a result of Gessel for the numbers used by Ap\'ery in his proof of the irrationality of . Moreover, we show that each of these sequences satisfies two-term supercongruences modulo . Using special constant term representations recently discovered by Gorodetsky, we prove these supercongruences in the two cases that remained previously open.
Cite
@article{arxiv.2301.12248,
title = {Gessel-Lucas congruences for sporadic sequences},
author = {Armin Straub},
journal= {arXiv preprint arXiv:2301.12248},
year = {2023}
}
Comments
17 pages