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