SINHA, .; CHAKRABORTY, . The Sum of Even Powers. Ohio Journal of School Mathematics, [S. l.], v. 93, n. 1, p. 72–73, 2023. Disponível em: http://voyager.janeway.systems:9999/index.php/OJSM/article/view/9329. Acesso em: 7 nov. 2026.