The answer, it turns out, is 144 — and the formula used to get to that answer is what's now known as the Fibonacci sequence. Read more: 9 equations that changed the world ...

More than that, this sequence of numbers can be found in several species of nature - from the snail to the sunflower, in its most classic examples - and it is also present in the human body as ...

The key Fibonacci ratio of 61.8% is found by dividing one number in the series by the number that follows it. For example, 21 divided by 34 equals 0.6176, and 55 divided by 89 equals about 0.61798.

In 1611, Johannes Kepler commented on the relationship between the Fibonacci sequence and the golden ratio, though he didn't pursue this connection extensively. 4 It wasn't until the 19th century ...

The answer, it turns out, is 144 — and the formula used to get to that answer is what's now known as the Fibonacci sequence. Read more: 9 equations that changed the world ...

The Fibonacci sequence is a famous group of numbers beginning with 0 and 1 in which each number is the sum of the two before it. It begins 0, 1, 1, 2, 3, 5, 8, 13, 21 and continues infinitely.

Key Points : The Golden Ratio is defined as a special number that approximately equals 1.618. It is derived from the Fibonacci sequence, where each number is the sum of the two preceding ones.

The number of sequences that can be written is infinite since any random list of numbers will do. But some types of sequences are decidedly non-random—one of which being the geometric sequence.

The Fibonacci sequence is a series of numbers where each number is a sum of the two numbers before it. For example, with the string "0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55," if you add 0 + 1, you get 1.

Leonardo da Vinci's use of the Fibonacci Sequence in 'La Gioconda' (Mona Lisa). Picture: Getty Images / Classic FM The Fibonacci Sequence in music The Fibonacci Sequence plays a big part in Western ...