There exists a number in this sequence that's divisible by $n$
- Anindya Biswas
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Let $a_0=0$, $a_1$ and $a_2$ are some integers. For all integer $k\geq3$, $a_k=5a_{k-1}+12a_{k-2}-13a_{k-3}$. Prove that for all positive integer $n$, there exists $m\leq n^3$ such that $n|a_m$.
Last bumped by Anindya Biswas on Tue Mar 16, 2021 3:51 am.
"If people do not believe that mathematics is simple, it is only because they do not realize how complicated life is."
— John von Neumann
— John von Neumann