Problem 2423. Integer Sequence - II : New Fibonacci

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Crack the following Integer Sequence. (Hints : It has been obtained from original Fibonacci Sequence and all the terms are also part of original Fibonacci Sequence)

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2473 Solutions
571 Solvers

Last Solution submitted on May 06, 2025

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11 Comments

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Christian Schröder on 9 May 2023

@Brandon It's not the Fibonacci sequence, it's a sequence _based_ thereon. Please feel free to take a look at other players' correct solutions to see what the intended solution was.

Wayne on 21 Jan 2025

Maybe I'm missing something or maybe the problem statement got corrupted somehow, but I have no idea what the problem is even asking for: "Crack [whatever that means] the following integer sequence." End-of-problem-statement. Even after looking at the solutions (having to hard code the answers to do so), it's unclear what you were looking for. As written, it seems you were asking for a function that was a simple regurgitation of the "given" sequence terms in the test cases.

Christian Schröder on 22 Jan 2025

@Wayne The problem description is indeed terse... the values of the sequence are given in the test cases, and you're supposed to find out the mathematical rule that was used to generate them.

For the actual rule, see e.g. solution 1879955.

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Sequences & Series I

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