Djamel Bellaouar. When does (P x n+1 +P x n−1 )/2 Equal a Pell-Lucas Number?. JJMS [Internet]. 2025 Oct. 13 [cited 2025 Oct. 15];18(3):341-9. Available from: https://jjms.yu.edu.jo/index.php/jjms/article/view/1414