👉 Recurrence is a mathematical concept that refers to the behavior of a sequence or function where the values repeat periodically. In other words, if you have a sequence such as 1, 2, 3, 4, and then you add another number like 5, it will always return back to the same starting point after every single addition. For example, consider the sequence: 1, 2, 3, 4. When we add 5 to each of these numbers