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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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2012_04_30_saxton_thomason: At least 2^((1.16+o(1)) root N) Sidon subsets of the first N integers by an explicit construction, hence 2^((0.16+o(1)) root N) maximal ones; refereed; the deduction, posted in the forum on 2025-11-23, is recorded by the curator.
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