WALKER, J. M.; MCBURNEY, M. R. What Are The Next Three Terms In This Sequence?. Ohio Journal of School Mathematics, [S. l.], v. 77, n. 1, 2017. Disponível em: https://www.osu.tests.sfulib4.publicknowledgeproject.org/index.php/OJSM/article/view/5816. Acesso em: 29 apr. 2026.