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inline formula

edited Apr 13, 2019 at 16:22

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How to calculate: $\sum\limits_{k=0}^{n-m} \frac{1}{n-k} {n-m \choose k}$

How to calculate: $$\sum _{k=0}^{n-m} \frac{1}{n-k} {n-m \choose k}.$$

co.combinatorics permutations binomial-coefficients combinatorial-identities

asked Apr 13, 2019 at 16:22

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