BAUMHECKEL, Audrey; FORGÁCS, Tamás. An Exploration of Very Triangular Numbers. The PUMP Journal of Undergraduate Research, [S. l.], v. 6, p. 317–333, 2023. DOI: 10.46787/pump.v6i0.3853. Disponível em: https://journals.calstate.edu/pump/article/view/3853. Acesso em: 20 jul. 2024.