Problem 2371. Integer sequence - 2 : Kolakoski sequence

Created by rifat

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Get the n-th term of Kolakoski Sequence.

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Last Solution submitted on Jan 27, 2026

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Guillaume on 18 Jun 2014

It'd be good to indicate which kolakoski sequence you mean since I can find at least two different ones
1. wikipedia = http://oeis.org/A000002
2. wolfram mathworld = http://oeis.org/A006928

rifat on 18 Jun 2014

it is https://oeis.org/A000002

Dyuman Joshi on 28 Jan 2026 at 14:25

Test suite has been updated -
> str2num has been outlawed to prevent hard-coded and cheat/hack solutions.
> Test cases added, including a random number check.
> Solutions have been re-scored.

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Problem 2371. Integer sequence - 2 : Kolakoski sequence

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Last 200 Solutions

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Problem 2371. Integer sequence - 2 : Kolakoski sequence

Solution Stats

Last 200 Solutions

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Solution Comments

Problem Recent Solvers188

Suggested Problems

More from this Author44

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