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MathNet 2003 — Part 02 Question 141

Math Olympiad Vault · MathNet 2003 — Part 02

Question 141

For a positive integer $n$, let $p(n)$ denote the number of sequences of positive integers the sum of whose terms is equal to $n$. Show that
$$
\frac{1 + p(1) + p(2) + \dots + p(n-1)}{p(n)} \le \sqrt{2n} .
$$