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Is there any formula for this series?

$$1 + \frac12 + \frac13 + \cdots + \frac 1 n .$$

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    See also: http://math.stackexchange.com/questions/2234/sum-of-harmonic-progression2010-09-20
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    And http://mathworld.wolfram.com/HarmonicNumber.html too.2010-09-20
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    One interesting thing in this series, and with all infinite series (I think), is that you can take away any finite number of members and the whole summation will still be equal to infinite.2013-06-09
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    See also: http://math.stackexchange.com/questions/451558/how-to-find-the-sum-of-this-series-1-frac12-frac13-frac14-do (And maybe also other post that are [linked there](http://math.stackexchange.com/questions/linked/451558) might be interesting for people who are interested in this question.)2016-04-15

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