Pell factoriangular numbers

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Date
2019
Journal Title
Journal ISSN
Volume Title
Publisher
Publications de l'institut mathematique
Abstract
We show that the only Pell numbers which are factoriangular are 2, 5 and 12.
Description
Luca and Gómez-Ruiz [8], proved that the only Fibonacci factoriangular numbers are 2, 5 and 34. This settled a conjecture of Castillo from [3]. In this paper, we prove the following related result.
Keywords
factoriangular number, Pell numbers
Citation
Luca, F., Odjoumani, J., Togbé, A. (2019). Pell factoriangular numbers. Pg 1-8. https://doi.org/10.2298/PIM1919093L
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