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Concrete mathematics : a foundation for computer science

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6.4 HARMONIC SUMMATION<br />

6.4 HARMONIC SUMMATION 265<br />

Now let’s look at some sums involving harmonic numbers, starting<br />

with a review of a few ideas we learned in Chapter 2. We proved in (2.36)<br />

and (2.57) that<br />

t<br />

O

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