Problem

erdos:413

True ↔ {n | Erdos413.IsBarrier (fun m => ↑(ArithmeticFunction.cardDistinctFactors m)) n}.Infinite

Open Current State

Declared status: open
Formalization: formalized
Subjects: number theoryiterated functions
OEIS: A005236
Sources: source:erdos-problemssource:formal-conjectures
Statement: www.erdosproblems.com

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