Closed form of $\sum_{n=1}^{\infty} n^{-n}$
24508
Series as an integral (sophomore's dream)
154544
Prove that $ \sum_{n=0}^\infty \frac{z^{2^n}}{1-z^{2^{n+1}}}=\frac{z}{1-z} $
6416
How can I evaluate $\sum_{n=0}^\infty(n+1)x^n$?
91784
Calculating $\sum_{n=1}^\infty {\frac{1}{2^nn(3n-1)}}$
158737
What is the value of the series $\sum\limits_{n=1}^\infty \frac{(-1)^n}{n^2}$?
119606
Closed form of summation
38760
Infinite Series $\sum\limits_{n=0}^\infty\frac{(-1)^n}{(2n+1)^{2m+1}}$
125981
Closed-Form Solution to Infinite Sum
99314
Closed form of infinite product $ \prod\limits_{k=0}^\infty \left(1+\frac{1}{2^{2^k}}\right)$
4414
Computig the series $\sum\limits_{n=2}^\infty \ln\left(1-\frac{1}{n^2}\right)$
55339
Find the sum $\sum_{n=1}^{\infty}\frac{ 1}{n^{2}(2n-1)}$
84147
Evaluating $\sum_{n=1}^\infty \frac{2^{2n-1}}{5^{n+1}}$
19899
infinite series of the form $\sum\limits_{k=1}^{\infty}\frac{1}{a^{k}+1}$
39909
Getting a closed form from $\sum_{i=1}^{n-1} \sum_{j=i+1}^{n} \sum_{k=1}^{j} 1$
98941
Closed formula for the sums $\sum\limits_{1 \le i_1 < i_2 < \dots < i_k \le n} i_1 i_2 \cdots i_k $?
135927
Calculating $\sum_{n=1}^\infty\frac{1}{(n-1)!(n+1)}$
19914
Closed form for $\sum_{n=0}^{\infty} \binom{n+k}{k} x^n$ (Negative Binomial Theorem)