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Export Reference (APA) 
Mendes, S. (2026). The Diophantine equation Qxn + Qxn+1 = y2. Integers. 26
Export Reference (IEEE) 
S. M. Mendes,  "The Diophantine equation Qxn + Qxn+1 = y2", in Integers, vol. 26, 2026
Export BibTeX 
@article{mendes2026_1785918506702,
	author = "Mendes, S.",
	title = "The Diophantine equation Qxn + Qxn+1 = y2",
	journal = "Integers",
	year = "2026",
	volume = "26",
	number = "",
	doi = "10.5281/zenodo.20597580",
	url = "https://math.colgate.edu/~integers/"
}
Export RIS 
TY  - JOUR
TI  - The Diophantine equation Qxn + Qxn+1 = y2
T2  - Integers
VL  - 26
AU  - Mendes, S.
PY  - 2026
DO  - 10.5281/zenodo.20597580
UR  - https://math.colgate.edu/~integers/
AB  - We show that the Diophantine equation Qxn + Qxn+1 = y2, where Qn is the n-th Pell–Lucas number, has only one nonnegative integer solution. 
ER  -