ÖZKOÇ, ARZU; TEKCAN, AHMET; GÖZERT, GÜL KARADENIZ. Triangular and square triangular numbers involving generalized pell numbers. Utilitas Mathematica , [S. l.], v. 102, 2017. Disponível em: https://utilitasmathematica.com/index.php/Index/article/view/1234. Acesso em: 7 may. 2026.