Fibonacci poetry is based upon a mathematical sequence popularized by Leonardo Fibonacci, a 12th century mathematician. A Fibonacci sequence begins with 0, followed by 1. Each succeeding number is the sum of the previous two numbers.

The first 13 numbers in a Fibonacci sequence are 0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, and 144. In a Fibonacci poem, the zero is dropped, and usually the first six or seven numbers following the 0 are used.

In a 6-line Fibonacci poem, the first line has one syllable, the second line has one syllable, the third line has two, the fourth line has three, the fifth line has five, and the sixth line has eight.

A 7-line Fibonacci follows this syllable pattern, with the seventh line having 13 syllables:

1 – 1 – 2 – 3 – 5 – 8 – 13