Evaluating $\sum_{n \geq 0} \frac{x^{8n}}{(8n)!}$
107789
Sum of $\sum \limits_{n=0}^{\infty} \frac{1}{(kn)!}$
150148
Sum of $\sum^\infty_{n=2} \frac{1}{\ln{(n!)}}$
42736
Is there a closed form for $\sum_{k=0}^n \frac{x^k}{k!}$?
49936
Various evaluations of the series $\sum_{n=0}^{\infty} \frac{(-1)^n}{(2n+1)^3}$
144568
How closely can we estimate $\sum_{i=0}^n \sqrt{i}$
114280
Computing $\sum_{n=1}^∞\frac{1}{(n+1)(n+2)(n+3)....(n+p)}$
120633
How to find sum of this series $\sum_{0}^{\infty} \frac{(n!)^{2}x^{n}}{(2n)!}$
5974
Evaluating $\lim\limits_{n\to\infty} e^{-n} \sum\limits_{k=0}^{n} \frac{n^k}{k!}$
121617
Closed form of $\sum_{n=0}^{\infty} \frac{\cos(\alpha \, n)}{n!}$
18397
Factorial sum estimate $\sum_{n=m+1}^\infty \frac{1}{n!} \le \frac{1}{m\cdot m!}$
57759
Determining the infinite sum $\sum\limits_{n=0}^{\infty}\frac{(-1)^n}{2n+1}$
56365
Evaluate $\sum\limits_{k=1}^{n} \frac{k}{2^k}$
60197
Infinite Series $\sum\limits_{n=1}^\infty\frac{x^{3n}}{(3n-1)!}$
17172
Series $\frac{x^{3n}}{(3n)!} $ find sum using differentiation
93427
Show that $\sum_{i=1}^{n} \frac {a_i}{1+a-a_i} + \prod_{i=1}^{n} {(1-a_i)} \leq 1$
61659
How to show that $ \sum_{n = 0}^{\infty} \frac {1}{n!} = e$?
76296
Compute $\frac{1}{e}\sum\limits_{n=0}^{\infty}\frac{n^{k}}{n!}$ for $k=0, 1, 2 ... $