On the Fibonacci numbers and their sums which are close to a power of 3. Gulf Journal of Mathematics, [S. l.], v. 19, n. 2, p. 47–60, 2025. DOI: 10.56947/gjom.v19i2.2758. Disponível em: https://www.gjom.org/index.php/gjom/article/view/2758. Acesso em: 19 aug. 2026.