A000045 (OEIS entry for Fibonacci sequence)

The OEIS entry A000045 describes the Fibonacci sequence, a series of numbers where each number is the sum of the two preceding ones, starting from 0 and 1. So, the sequence begins 0, 1, 1, 2, 3, 5, 8, and so on. This pattern consistently generates new numbers, creating a sequence that appears in various natural phenomena, like flower arrangements and spiral shells. The Fibonacci sequence also has interesting mathematical properties, such as ratios approaching the golden ratio, making it a fundamental concept in mathematics and nature.