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On b−repdigits which are sums of three Narayana numbers with a consequence

Year: 2025

Type: article

Abstract: The sequence known as Narayana’s cows sequence is defined by the thirdorder linear recurrence relation Nn = Nn−1 + Nn−3, for n ≥ 3, with the initial values given by N0 = N1 = N2 = 1. In this paper, we explore the class of numbers known as brepdigits that can be represented as the sum of three terms from this sequence. Specifically, we aim to identify all such numbers for bases in the range 2 ≤ b ≤ 30. Our approach relies on precise lower bounds for linear forms in logarithms, along with an enhanced version of the Baker-Davenport reduction method applied to Diophantine equations.

Source: Baku Mathematical Journal

DOI: 10.32010/j.bmj.2025.19

Authors: Pagdame Tiebekabe, S´emou Diouf Cheikh, Salifou Nikiema

Institution: University of Kara

Language: English

Topic: Algebraic Geometry and Number Theory

Subfield: Geometry and Topology

Field: Mathematics

Domain: Physical Sciences

Open Access status: bronze

OpenAlex ID: W4414535187

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