Comptes Rendus
Théorie des nombres
Hyperharmonic integers exist
[Des entiers hyperharmoniques existent]
Comptes Rendus. Mathématique, Volume 358 (2020) no. 11-12, pp. 1179-1185.

We show that there exist infinitely many hyperharmonic integers, and this refutes a conjecture of Mező. In particular, for r=64·(2 α -1)+32, the hyperharmonic number h 33 (r) is integer for 153 different values of α(mod748440), where the smallest r is equal to 64·(2 2659 -1)+32.

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DOI : 10.5802/crmath.137
Classification : 11B83, 05A10, 11B75
Doğa Can Sertbaş 1

1 Department of Mathematics, Faculty of Sciences, Sivas Cumhuriyet University, 58140, Sivas, TURKEY.
Licence : CC-BY 4.0
Droits d'auteur : Les auteurs conservent leurs droits
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     title = {Hyperharmonic integers exist},
     journal = {Comptes Rendus. Math\'ematique},
     pages = {1179--1185},
     publisher = {Acad\'emie des sciences, Paris},
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     year = {2020},
     doi = {10.5802/crmath.137},
     language = {en},
}
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Doğa Can Sertbaş. Hyperharmonic integers exist. Comptes Rendus. Mathématique, Volume 358 (2020) no. 11-12, pp. 1179-1185. doi : 10.5802/crmath.137. https://comptes-rendus.academie-sciences.fr/mathematique/articles/10.5802/crmath.137/

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[3] Emre Alkan; Haydar Göral; Doğa Can Sertbaş Hyperharmonic numbers can be rarely integers, Integers, Volume 18 (2018), A43 | Zbl

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[5] Haydar Göral; Doğa Can Sertbaş Almost all Hyperharmonic Numbers are not Integers, J. Number Theory, Volume 171 (2017), pp. 495-526 | DOI | MR | Zbl

[6] Haydar Göral; Doğa Can Sertbaş Divisibility Properties of Hyperharmonic Numbers, Acta Math. Hung., Volume 154 (2018) no. 1, pp. 147-186 | DOI | MR | Zbl

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[8] István Mező About the non-integer property of hyperharmonic numbers, Ann. Univ. Sci. Budap. Rolando Eötvös, Sect. Math., Volume 50 (2007), pp. 13-20 | MR | Zbl

[9] Doğa Can Sertbaş GitHub Repository for Hyperharmonic Integers, 2020 (https://github.com/dsertbas/hyperharmonic-integers)

[10] The Sage Developers SageMath, the Sage Mathematics Software System (Version 8.3), 2018 (https://www.sagemath.org)

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