The Fibonacci sequence is a set of steadily increasing numbers where each number is equal to the sum of the preceding two numbers.

You can easily generalize Fibonacci numbers to those that arise when each consecutive number is the sum of the four numbers that precede it. Ergo, tetranacci numbers: 0, 0, 0, 1, 1, 2, 4, 8, 15 ...

This year, we invite everyone to consider the Fibonacci numbers, which make up the Fibonacci sequence. You probably remember this from a math class years ago: the sequence starts with 0 and 1, and ...