Closed form solution for $\sum_{n=0}^{\infty} a^{\sqrt{n}}$
47357
Does the series $\sum_{n=1}^{\infty}|x|^\sqrt n$ converge pointwise? If it then what would be the sum?
87479
Closed form for $\sum_{k=0}^{n-p}\binom{n}{k}\binom{n}{p+k}$
157972
Find a closed form expression for $\sum\limits_{i=0}^{\infty} i^2\cdot x^i$
142725
The general solution of $x^a = a^x$ for real $a >0$
138313
How to sum $\sum_{n=1}^{\infty} \frac{1}{n^2 + a^2}$?
913
Evaluating $\sum_{n=0}^{\infty}{\sin^{3}\left(3^{n}\right) \over 3^{n}}$
77519
I'm searching for the formula of the series $ \sum_{n=0}^{\infty}a^{n^l} $
136444
Evaluating $\sum_{n=0}^\infty\frac{(-1)^n}{3n+1}$
104078
Calculate the sum of the infinite series $\sum_{n=0}^{\infty} \frac{n}{4^n}$
129801
Finding a closed form for $\sum^{n}_{k=1} \frac{k}{(k+1)!} $
101908
Solving summations of form $\sum_{i=0}^{\infty} i^kx^i$ without Differentiation and Integration
139307
Closed form expression for infinite series
98124
Solving for the closed term solution of a third order recurrence relation with real constant coefficients
78008
A conjectured closed form of $\int\limits_0^\infty\frac{x-1}{\sqrt{2^x-1}\ \ln\left(2^x-1\right)}dx$
33965
Convergence of $\sum_{n=1}^\infty (-1)^n(\sqrt{n+1}-\sqrt n)$
99314
Closed form of infinite product $ \prod\limits_{k=0}^\infty \left(1+\frac{1}{2^{2^k}}\right)$
14175
$\sum_\limits{n=0}^{\infty} a_n$ converges $\implies \sum_\limits{n=0}^{\infty} a_n^2$ converges