Erdős problem 376

Are there infinitely many $n$ such that ${2n\choose n}$ is coprime to $105$ ?

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2 retained statements36c6d0fef71a

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FormalConjectures/ErdosProblems/

376.lean

Retained formal statement1 of 2

Are there infinitely many $n$ such that ${2n\choose n}$ is coprime to $105$ ?

FormalConjectures/ErdosProblems/376.leanErdos376.erdos_3761 lineExact file

1True ↔ {n | n.centralBinom.Coprime 105}.Infinite

OpenStatement only, no proof