---
title: "\cdot"
url: https://extraproxies.com/tag/cdot
type: term
taxonomy: post_tag
taxonomy_label: "Tag"
count: 1
lang: en
---

# \cdot

## Latest entries

- [Is there another way of expressing $\sum\limits_{k=1}^n \binom{n}{k} \cdot (n-k)! \cdot k!$?](https://extraproxies.com/is-there-another-way-of-expressing-sumlimits_k1n-binomnk-cdot-n-k-cdot-k) — I have stumbled across the formula $ \sum\limits_{k=1}^n \binom{n}{k} \cdot (n-k)! \cdot k!$ in some applied context. It looks as though there might be a nice combinatorial background to this...