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erdos_424

Specification

Let $a_1 = 2$ and $a_2 = 3$ and continue the sequence by appending to $a_1, \ldots, a_n$ all possible values of $a_i a_j - 1$ with $i \neq j$. Is it true that the set of integers which eventually appear has positive density?

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Lean 4 Statement 
theorem erdos_424 : answer(sorry) ↔ generatedSet.HasPosDensity
ID: ErdosProblems__424__erdos_424
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