A sum involving binomial coefficient

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SUMMARY

The discussion centers on the sum involving the binomial coefficient expressed as sum_{i=k}^{n} {i \choose k}i^{-t}, where t is a constant. A closed form for this sum is achievable exclusively for integral values of t. To derive this closed form, one must solve the differential equation associated with the generating function of the series.

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  • Research methods for solving differential equations related to generating functions
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[tex]sum_{i=k}^{n} {i \choose k}i^{-t}[/tex]

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where t is a constant.

Does it have a closed form?
 
Last edited:
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A closed form is possible only for integral values of t (that too, if you can solve the differential equation involving the generating function).
 

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