olymmath

BALTIC-WAY 2024 Problem 18

    An infinite sequence a1,a2,…a_{1}, a_{2}, \ldots of positive integers is such that an≥2a_{n} \geq 2 and an+2a_{n+2} divides an+1+ana_{n+1}+a_{n} for all n≥1n \geq 1. Prove that there exists a prime which divides infinitely many terms of the sequence.

    Dataset text NuminaMath olympiads. Quoted with source.

    Solutions

    No solution is on olymmath yet. Official and human solutions come first when they arrive. AI solutions come after them, with a label.

    Add a solution

    Locator baltic-way/2024/p18 · Tag ZFBY6AARS9 · Edit this page on GitHub · Keys: j next, k previous