COHN, J. H. E. The Diophantine equation $X(X + 1) = Y(Y^2 + 1)$. Mathematica Scandinavica, Berkeley, CA, United States, v. 68, p. 171–179, 1991. DOI: 10.7146/math.scand.a-12354. Disponível em: https://journals.msp.org/mscand/article/view/1277. Acesso em: 24 jul. 2026.