In his workliber Abbaci, published in 1202, Leonardo Fibonacci of Pisa, Italy
Chapter 8, Problem 14(choose chapter or problem)
In his workliber Abbaci, published in 1202, Leonardo Fibonacci of Pisa, Italy, speculated on the reproduction of rabbits: How many pairs of rabbits will be produced in a year beginning with a single pair, if every month each pair bears a new pair which become productive from the second month on? The answer to his question is contained in a sequence known as a Fibonacci sequence.
Unfortunately, we don't have that question answered yet. But you can get it answered in just 5 hours by Logging in or Becoming a subscriber.
Becoming a subscriber
Or look for another answer