Erdős Problem #838
OPENdatabase updated 2025-08-31
No proof or disproof is known, and it isn't known whether a finite computation could settle it.
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proved a rigorous upper-constant improvement to \(1/(2\ln2)=0.7213475\ldots\) in base-2 normalization and exhaustively computed \(f(3),\ldots,f(9)=1,4,11,23,44,77,123\), but the limit and its value re
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