Introduction

Sequences can seem very abstract and strange with their mathematical symbols and notations. However, sequences can be found everywhere in our daily lives. For example, something as simple as the even numbers is a sequence. Sequences are also used in the credit card industry, biology, chemistry, and even the produce section of your corner grocery store. Yes, sequences are everywhere.

The number of seeds in the rows or columns of a sunflower follow the fibonacci sequence.
A Credit card company uses numbers to encode your account information. Each number is part of a complicated sequence that helps the company keep track thousands of customers.
The human DNA is a very long and complicated sequence involving specific chemicals.
The rings on a tree are a sequence that can help determine the age and condition of the tree. (whether it's sick or healthy)