olymmath

RU-ALLRUSSIAN 1978 Problem 1

    an\mathbf{a}_{\mathrm{n}} is the nearest integer to n\sqrt{\mathrm{n}} . Find 1/a1+1/a2+…+1/a19801 / \mathrm{a}_{1} + 1 / \mathrm{a}_{2} + \ldots +1 / \mathrm{a}_{1980} .

    Dataset text NuminaMath olympiads. Quoted with source.

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