5. * In the following sequence of problems, we will

Table 3 from Extended Lagrange's four-square theorem

Euler's four-square identity

What's so interesting about squared numbers? Lagrange's Four Square Theorem

SOLUTION: Lagrange s four square theorem - Studypool

Square Number Definition & Meaning

Discrete quantum computation and Lagrange's four-square theorem

Four Square Theorem - Quaternions, PDF, Prime Number

CodeChef - Lagrange's four-square theorem, also known as Bachet's conjecture, states that every natural number can be represented as the sum of four integer squares. This theorem was proven by Joseph Louis

Waring's Problem -- from Wolfram MathWorld

Euler's four-square identity - Wikipedia