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1 History In 1874, Mertens proved that where is Euler’s totient function. A natural question we can ask is whether or not this error term can be improved, and what we should expect it to look like. Throughout we use … Continue reading
Motivated by this Math Stack Exchange problem the goal is to evaluate the sum for any nonnegative integer . From looking at this, it is very reasonable to expect that the answer should be a linear combination of the Stieltjes … Continue reading