On Palindromic forms in the $k$-Lucas sequence composed of two distinct Repdigits

Fuente: arXiv
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Autori principali: Batte, Herbert, Kaggwa, Prosper
Natura: Preprint
Pubblicazione: 2025
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author Batte, Herbert
Kaggwa, Prosper
author_facet Batte, Herbert
Kaggwa, Prosper
contents For integers $k \geq 2$, the $k$-generalized Lucas sequence $\{L_n^{(k)}\}_{n \geq 2-k}$ is defined by the recurrence relation \[ L_n^{(k)} = L_{n-1}^{(k)} + \cdots + L_{n-k}^{(k)} \quad \text{for } n \geq 2, \] with initial terms given by $L_0^{(k)} = 2$, $L_1^{(k)} = 1$, and $L_{2-k}^{(k)} = \cdots = L_{-1}^{(k)} = 0$. In this paper, we extend work in \cite{Lucas} and show that the result in \cite{Lucas} still holds for $k\ge 3$, that is, we show that for $k\ge 3$, there is no $k$-generalized Lucas number appearing as a palindrome formed by concatenating two distinct repdigits.
format Preprint
id arxiv_https___arxiv_org_abs_2505_09638
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle On Palindromic forms in the $k$-Lucas sequence composed of two distinct Repdigits
Batte, Herbert
Kaggwa, Prosper
General Mathematics
11B39, 11D61, 11D45, 11Y50
For integers $k \geq 2$, the $k$-generalized Lucas sequence $\{L_n^{(k)}\}_{n \geq 2-k}$ is defined by the recurrence relation \[ L_n^{(k)} = L_{n-1}^{(k)} + \cdots + L_{n-k}^{(k)} \quad \text{for } n \geq 2, \] with initial terms given by $L_0^{(k)} = 2$, $L_1^{(k)} = 1$, and $L_{2-k}^{(k)} = \cdots = L_{-1}^{(k)} = 0$. In this paper, we extend work in \cite{Lucas} and show that the result in \cite{Lucas} still holds for $k\ge 3$, that is, we show that for $k\ge 3$, there is no $k$-generalized Lucas number appearing as a palindrome formed by concatenating two distinct repdigits.
title On Palindromic forms in the $k$-Lucas sequence composed of two distinct Repdigits
topic General Mathematics
11B39, 11D61, 11D45, 11Y50
url https://arxiv.org/abs/2505.09638