Binomial coefficient in closed form problem
Posted by shin2, at math.stackexchange.com,
Is anybody to give a insight, please? $8.9$. Let $\ell$ be an even positive integer. Express $$\sum_{k=0}^n\sum_{i=0}^\ell(-1…
Is anybody to give a insight, please? $8.9$. Let $\ell$ be an even positive integer. Express $$\sum_{k=0}^n\sum_{i=0}^\ell(-1…
What is your recommendation for an in-depth introductory combinatoric book? A book that doesn't just tell you about the…