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Fibonacci Sequence

Fibonacci Sequence

A Fibonacci sequence is created by adding the value of the previous two terms to create the value of the next term.

The Fibonacci sequence is:

1, 1, 2, 3, 5, 8, 13, 21 …

Note that the Fibonacci sequence requires two value (1, 1) to start it. Alternative sequences can be obtained by using different start numbers.

Example 1

What is the next term in the Fibonacci sequence 8, 13, 21, 34?

Take the previous two terms 21 + 34 = 55.

Answer: 55

Example 2

Is 100 a value in the Fibonacci sequence?

1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144: the value is not in the series

Answer: No