Fibonacci numbers in Ruby

Example for versions Ruby 1.8.5

This example uses recursive definition of Fibonacci numbers. 

#! /usr/bin/env ruby
def fibonacci(n)
    if n < 3
        1
    else
        fibonacci(n - 1) + fibonacci(n - 2)
    end
end

(1..16).each {|n| puts fibonacci(n)}
puts "..."