A sequence of numbers, created by
Leonardo of Pisa (also known as Fibonacci). The sequence starts out with
the first two numbers being 0 and 1, and after that you add the previous two numbers to get
the next number in the sequence. Often used in proofs.
0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 377, 610, 987, 1597, 2584, 4181, 6765