Pell factoriangular numbers

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Pell factoriangular numbers.pdf (134.75 KB)
Date
2019
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Publications de l'institut mathematique
Abstract
We show that the only Pell numbers which are factoriangular are 2, 5 and 12.
Description
Luca and GĂłmez-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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http://hdl.handle.net/123456789/1422
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