Trying variants of a simple mathematical rule that yields interesting results can lead to additional discoveries and curiosities. The numbers 1, 1, 2, 3, 5, 8, 13, 21, 34, and 55 belong to a famous ...

You're probably familiar with Fibonacci series of numbers, first analyzed in a published manuscript by the 13th-century mathematician Leonardo, son of Fibonacci of Pisa (in what is now Italy). The ...

“Do you see the pattern? Each number in the series after the first two numbers is the sum of the preceding two numbers.” That’s how I began my last column focusing on the Fibonacci sequence, which ...