All Things Fibonacci

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It's everybody's favorite algorithmic sequence. Dig deep and you'll find bunny rabbits, golden ratios, and sunflower seeds. What's not to like? As a result, it shows up everywhere people write code. Here are my favorite Fibonacci-related problems on Cody. By the way, that image is of Leonardo of Pisa. History knows him as Fibonacci, but his friends never called him that. Maybe we should call these things "Leo sequences."

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Problem Title	Likes	Solvers
Problem 12. Fibonacci sequence Created by: Cody Team Tags sequences, fibonacci, siam	104	13585
Problem 1946. Fibonacci-Sum of Squares Created by: Chris Cleveland Tags fibonacci, sum of squares	10	1487
Problem 44311. Number of Even Elements in Fibonacci Sequence Created by: Mehmet OZC Tags fibonacci, cody5, big number	19	1433
Problem 232. Project Euler: Problem 2, Sum of even Fibonacci Created by: Cody Team Tags projecteuler, fibonacci	29	2510
Problem 2024. Triangle sequence Created by: Tanya Morton Tags pythagoras, fibonacci	149	5306
Problem 44481. How many Fibonacci numbers? Created by: Bob Tivnan Tags integers, fibonacci, #easy	3	798
Problem 42340. Fibonacci Decomposition Created by: Ned Gulley Tags fibonacci	14	756
Problem 752. Is X a Fibonacci Matrix? Created by: Sean de Wolski Tags fibonacci, Tic...Toc...	13	660
Problem 8057. (Linear) Recurrence Equations - Generalised Fibonacci-like sequences Created by: Jan Orwat Tags sequences, fibonacci, recurrence	17	352

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Recent Activity

	NAGAOKA submitted Solution 14588809 to Problem 44481. How many Fibonacci numbers? on 28 Mar 2025 at 15:23
	NAGAOKA submitted Solution 14588358 to Problem 1946. Fibonacci-Sum of Squares on 28 Mar 2025 at 10:24
	Dev submitted Solution 14585431 to Problem 2024. Triangle sequence on 25 Mar 2025 at 1:45
	AYUSH submitted Solution 14580935 to Problem 42340. Fibonacci Decomposition on 20 Mar 2025 at 8:42
	Jayneel submitted Solution 14580864 to Problem 44481. How many Fibonacci numbers? on 20 Mar 2025 at 8:26

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