Let denote the -th harmonic sum. Evaluate the sum:

*(M. Omarjee)*

**Solution **[Roberto Tauraso]

It is easy to see that

since

Hence

Hence

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Let denote the -th harmonic sum. Evaluate the sum:

*(M. Omarjee)*

**Solution **[Roberto Tauraso]

It is easy to see that

since

Hence

Hence