Who is the Italian mathematician known for introducing the Fibonacci sequence?

The Italian mathematician known for introducing the Fibonacci sequence is indeed associated with both the name Fibonacci and Leonardo of Pisa. The Fibonacci sequence is a series of numbers where each number is the sum of the two preceding ones, typically starting with 0 and 1. This sequence is named after Leonardo of Pisa, who was known as Fibonacci. He introduced this sequence to Western mathematics through his book "Liber Abaci," published in 1202.

His work demonstrated the sequence’s relation to the growth patterns found in nature, including in populations of rabbits, which is the classic example he used. This connection laid the groundwork for many concepts in mathematics, number theory, and even elements of nature and art. Thus, referencing him as Leonardo of Pisa in this context is accurate, as that is the name under which he is historically recognized, particularly in scholarly circles discussing the Fibonacci sequence.