LYCAN, Ron; PONOMARENKO, Vadim. Sums of Two Generalized Tetrahedral Numbers. The PUMP Journal of Undergraduate Research, [S. l.], v. 5, p. 206–217, 2022. DOI: 10.46787/pump.v5i0.3329. Disponível em: https://journals.calstate.edu/pump/article/view/3329. Acesso em: 20 jul. 2024.