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30-seconds-of-code/snippets/fibonacci.md
Isabelle Viktoria Maciohsek 19f636408c Make expertise a field
2022-03-01 20:27:27 +02:00

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---
title: Fibonacci
tags: math,list
expertise: intermediate
firstSeen: 2018-10-06T06:06:33+03:00
lastUpdated: 2020-11-02T19:27:53+02:00
---
Generates a list, containing the Fibonacci sequence, up until the nth term.
- Starting with `0` and `1`, use `list.append()` to add the sum of the last two numbers of the list to the end of the list, until the length of the list reaches `n`.
- If `n` is less or equal to `0`, return a list containing `0`.
```py
def fibonacci(n):
if n <= 0:
return [0]
sequence = [0, 1]
while len(sequence) <= n:
next_value = sequence[len(sequence) - 1] + sequence[len(sequence) - 2]
sequence.append(next_value)
return sequence
```
```py
fibonacci(7) # [0, 1, 1, 2, 3, 5, 8, 13]
```