2 ms·Mathologer – Secrets of the lost number walls3 points by peter_d_sherman 4y agopeter_d_sherman 4y agoSquares (n^2) -- as a recurrence relationship expression: https://www.youtube.com/watch?v=NO1_-qptr6c&t=730s https://www.youtube.com/watch?v=NO1_-qptr6c&t=730s