Pereira Spreafico, E. V., and M. Rachidi. “On Generalized Pell Numbers of Order R ≥ 2”. Trends in Computational and Applied Mathematics 22, no. 1 (April 17, 2021): 125–138. Accessed April 28, 2026. https://tema.sbmac.emnuvens.com.br/tema/article/view/1500.