Sum of infinite series $ \sum_{k=0}^{\infty} kp(1-p)^k $
6416
How can I evaluate $\sum_{n=0}^\infty(n+1)x^n$?
87479
Closed form for $\sum_{k=0}^{n-p}\binom{n}{k}\binom{n}{p+k}$
132182
$\sum_{n=1}^\infty \sum_{m=1}^\infty\frac{1}{(m+n)^2}$
128200
Sequence sum question: $\sum_{n=0}^{\infty}nk^n$
74117
Find the sum of series $\sum_{n=0}^{\infty}\frac{z^{kn}}{(kn)!}$
119552
Summing Finitely Many Terms of Harmonic Series: $\sum_{k=a}^{b} \frac{1}{k}$
137249
find $\sum_{k=2}^{\infty}\frac{1}{k^2-1}$
118436
Identifying the series $\sum\limits_{k=-\infty}^{\infty} 2^k x^{2^k}$
151477
computing the series $\sum_{n=1}^\infty \frac{1}{n^2 2^n}$
69084
What is the closed form for $\sum_{n=1}^\infty \frac1n - \frac1{n+1/p}$?
43320
Find the sum of the power series $\sum_{n=1}^\infty n*(n+1)*x^n$
92754
Closed form for the series: $\sum_{n=1}^{\infty}x^{n^2}$
130548
What is the sum of the power series: $\sum_{k=2}^\infty\frac{x^k}{k(k-1)}$?
16967
Sum : $\sum_{n=0}^\infty \frac{(-1)^n}{(2n+1)^3}$
47980
Infinite series $\sum _{n=2}^{\infty } \frac{1}{n \log (n)}$
50435
Infinite Series $‎\sum\limits_{n=2}^{\infty}\frac{\zeta(n)}{k^n}$
326
Find $\sum_{k=1}^{\infty}\frac{1}{2^{k+1}-1}$