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A precise asymptotic formula for the number of $n \times 4t$ partial Hadamard matrices in the regimes $t/n^3 \to \infty$ and $t/n^3 \to \Theta$, reaching the cubic regime that previous approaches (de Launey-Levin and successors) could not.
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Beyond literature search and editing, "the author built a custom harness around GPT 5.4 Pro that identified bottlenecks in the existing proof approaches and, after considerable iteration, helped guide the analysis" to the cubic regime. The author states the harness will be documented separately.
Provider: OpenAI · Prompt public: unknown · Independence: unknown
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VibeMathed reports this item as resolved. VibeMath preserves that report as a source assertion and has not independently authored a plain-language mathematical explanation.
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VibeMath has not independently audited the mathematical statement, proof, or novelty claim.