Pell's equation - Wikipedia

PDF) The Pell equations x2-(k2-1)y2 = k2, k ∈ N, k ≥ 2 Recursion and Chebyshev polynomials

Pell Equation - Wolfram Demonstrations Project

Pell's Equation (Problem Books in Mathematics)

GitHub - Skelpdar/Chakravala: Solves Pell's equation using the Chakravala method

Pell number - Wikipedia

Chebyshev Polynomials, PDF, Polynomial

Pythagorean triples and Pell's equations - Codeforces

What are some examples of a Fisher equation? - Quora

History of mathematics, Math Wiki

2023 Number Challenge: Pell's Equation with d=2023

code golf - Fundamental Solution of the Pell Equation - Code Golf Stack Exchange

Équation de Pell-Fermat — Wikipédia