# Fibonacci Number

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## Fibonacci number

[¦fib·ə¦nä·chē ′nəm·bər]
(mathematics)
A number in the Fibonacci sequence whose first two terms are f1= f2= 1.

## Fibonacci Number

any term in the recursive number sequence 1, 1, 2, 3, 5, 8,.... In this sequence, which is called a Fibonacci sequence, each term, after the second, is the sum of the two previous terms. Fibonacci numbers are named for the medieval mathematician Leonardo Fibonacci.

### REFERENCE

Vorob’ev, N. N. Chisla Fibonachchi, 3rd ed. Moscow, 1969.
References in periodicals archive ?
Iterations of Fibonacci Number Ratios Converging to the Golden Mean 1 1.
E List the first twenty Fibonacci numbers in order.
After a few weeks of guided exploration, many children can, with just a few minutes of effort, set up a spreadsheet to list the Fibonacci numbers.
has taken a fresh look at Fibonacci numbers and unexpectedly discovered a new mathematical constant: the number 1.
To do this, it will be helpful if each term in this proposed equation can be expressed in terms of Fibonacci numbers, [F.
Stakhov and Aranson trace the connection of the golden ratio, Fibonacci numbers, Lucas sequences, and Binet's formulas with the "golden" hyperbolic Fibonacci and Lucas functions, Fibonacci &lt;/lambda&gt;-numbers, and metallic proportions.
Sun, Fibonacci numbers and Fermat's last theorem, Acta Arith.
This series of numbers is known as the Fibonacci numbers or the Fibonacci sequence.
Fibonacci numbers form a sequence of non-negative integers [F.
Rabinowitz: Algorithmic manipulation of Fibonacci Identities, Applications of Fibonacci numbers, Vol.
Other examples of FIBONACCI NUMBERS appear in the branching of trees, the arrangement of leaves on a stem, and the arrangement of a pine cone.

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