The Fibonacci sequence is a series where each number is the double of the previous number

Explanation

It is a mathematical sequence where each number is the sum of the two preceding ones, starting from 0 and 1. The sequence begins: 0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, and continues infinitely. Fun fact: the ratio of consecutive numbers converges to the Golden Ratio (φ ≈ 1.618).