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MathNet 2024-part-02 — 168 problems (EN–VI) Question 110

Math Olympiad Vault · MathNet 2024-part-02 — 168 problems (EN–VI)

Question 110

Determine all integers $n$ with the following property: if we set $a_{k} = \operatorname{lcm}(k, k+1, \ldots, k+n-1)$, then the sequence $(a_{k})$ is increasing.