Recursive sequences

A recursive sequence is a series of numbers where each term is generated from previous terms based on a specific rule. For example, in the Fibonacci sequence, each number is the sum of the two preceding ones: starting with 0 and 1, the next numbers are 1, 2, 3, 5, 8, and so on. This concept is widely used in mathematics, computer science, and natural phenomena, as it reflects how complex systems can evolve from simpler initial conditions through repeated application of a function or relationship.