On the Diophantine equation
Volume 159 / 2020
Colloquium Mathematicum 159 (2020), 119-126
MSC: 11B39, 11J86, 11D61.
DOI: 10.4064/cm7485-12-2018
Published online: 25 October 2019
Abstract
We solve the Diophantine equation in the tittle in nonnegative integers m,n, and a. In order to prove our result, we use lower bounds for linear forms in logarithms and a version of the Baker–Davenport reduction method in Diophantine approximation.