How to compute $\sum_{k = 1}^{\infty} \frac{1}{k^2-\frac{1}{16}}$?
106552
Find the sum of $\sum \frac{1}{k^2 - a^2}$ when $0<a<1$
117056
How to show $\sum_{n=1}^{\infty}\frac{H_{n+1}}{n(n+1)}=2$?
102942
Compute the sum $\sum_{k=1}^{\infty}k^mz^k$ where $|z|<1$
59253
Summing the power series $\sum\limits_{n=0}^\infty (-1)^n \frac{x^{2n+1}}{2n+1}\prod\limits_{k=1}^n\frac{2k-1}{2k} $
82391
Why does $\sum_{k=1}^{\infty}\frac{{\sin(k)}}{k}={\frac{\pi-1}{2}}$?
137155
Sum $ \sum\limits_{k=1}^{\infty} \frac{k^2}{2^k}$
17713
What's the value of $\sum\limits_{k=1}^{\infty}\frac{k^2}{k!}$?
84335
Solving for $\sum_{n = 1}^{\infty} \frac{n^3}{8^n}$?
4253
How to calculate: $\sum_{n=1}^{\infty} n a^n$
61850
Compute $\sum_{k=0}^{\infty}\frac{1}{2^{k!}}$
69084
What is the closed form for $\sum_{n=1}^\infty \frac1n - \frac1{n+1/p}$?
30518
Formula for $\sum_{k=1}^n \frac{1}{k(k+1)(k+2)}$?
123951
Problem calculating sum of convergent series of $\sum_{n=2}^{\infty} \frac{1}{n^{2}-1}$
137027
Find the value of $\sum_{n=0}^\infty\frac{1}{9n^2+9n+2}$
101052
Find the infinite sum $\sum_{k=1}^{\infty}\sqrt k - 2\sqrt {k + 1} + \sqrt {k + 2} $
122236
How to compute the series: $\sum_{n=0}^{\infty} (-1)^{n-1}\binom{1/2}{n}$
29524
Formula for the sum $\sum_{i=2}^{n} \frac1{i^2-1}$