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	105	13590
Problem 1946. Fibonacci-Sum of Squares Created by: Chris Cleveland Tags fibonacci, sum of squares	10	1489
Problem 44311. Number of Even Elements in Fibonacci Sequence Created by: Mehmet OZC Tags fibonacci, cody5, big number	20	1435
Problem 232. Project Euler: Problem 2, Sum of even Fibonacci Created by: Cody Team Tags projecteuler, fibonacci	29	2514
Problem 2024. Triangle sequence Created by: Tanya Morton Tags pythagoras, fibonacci	149	5325
Problem 44481. How many Fibonacci numbers? Created by: Bob Tivnan Tags integers, fibonacci, #easy	3	800
Problem 42340. Fibonacci Decomposition Created by: Ned Gulley Tags fibonacci	14	758
Problem 752. Is X a Fibonacci Matrix? Created by: Sean de Wolski Tags fibonacci, Tic...Toc...	14	661
Problem 8057. (Linear) Recurrence Equations - Generalised Fibonacci-like sequences Created by: Jan Orwat Tags sequences, fibonacci, recurrence	17	352

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	Brent submitted Solution 14613983 to Problem 42340. Fibonacci Decomposition 9 hours and 36 minutes ago
	Brent submitted Solution 14613930 to Problem 44481. How many Fibonacci numbers? 11 hours and 49 minutes ago
	Siddhesh submitted Solution 14612639 to Problem 42340. Fibonacci Decomposition on 17 Apr 2025 at 17:08
	Siddhesh submitted Solution 14612630 to Problem 44481. How many Fibonacci numbers? on 17 Apr 2025 at 17:03
	Siddhesh submitted Solution 14612620 to Problem 2024. Triangle sequence on 17 Apr 2025 at 16:59

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