Erdős problem 252 · problems.science

Erdős Problem 252: irrationality of the sum for a given $k$ .

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9 retained statements2415f78e850a

FormalConjectures/ErdosProblems/

252.lean

Retained formal statement2 of 9

∑ σ 4 n / n! is irrational. This is proved in [Pr22].

FormalConjectures/ErdosProblems/252.leanErdos252.erdos_252.variants.k_eq_four1 lineExact file

1Irrational (Erdos252.erdos_252_sum 4)

SolvedStatement only, no proof