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The coin-game constant satisfies c(k^2) = 1/k, and √n·c(n) → 1 as n → ∞.

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this was enough data for Stijn to conjecture that {c(k^2)=1/k}, which would also imply that {\sqrt{n} c(n) \rightarrow 1} as {n \rightarrow \infty}

https://terrytao.wordpress.com/2025/12/08/the-story-of-erdos-problem-126/extraction 0.90

Stijn's conjecture on exact values, later attributed also to Steele (1980).

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Created by extractor · Sep 13, 2026. Every judgment on this page is accompanied by a reasoning trace.