Journal of Integer Sequences, Vol. 26 (2023), Article 23.7.7

Divisibility Properties of Dedekind Numbers


Bartłomiej Pawelski and Andrzej Szepietowski
Institute of Informatics
University of Gdańsk
Poland

Abstract:

We study some divisibility properties of Dedekind numbers. We show that the ninth Dedekind number is congruent to 6 modulo 210.

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(Concerned with sequences A000372 A001206 A003182 A220879.)

Received March 15 2023; revised versions received March 16 2023; May 17 2023; June 13 2023; June 14 2023. Published in Journal of Integer Sequences, August 16 2023.

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