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Research notes on every problem, and a library of the papers behind them. Built from the open erdos repository.

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1988_12_01_alon_freiman: Alon and Freiman find an m for which the largest subset of the first n integers avoiding m as a subset sum has (1/2 + o(1)) n / log n elements, matching the Erdős-Graham lower bound; Combinatorica (1988), site-credited.