Find a closed form for $\sum_{k=0}^{n} k^3$
134311
How to determine equation for $\sum_{k=1}^n k^3$
47706
Find the value of $ \sum_{n=1}^{\infty} \frac{n^3}{3^n} $
102942
Compute the sum $\sum_{k=1}^{\infty}k^mz^k$ where $|z|<1$
913
Evaluating $\sum_{n=0}^{\infty}{\sin^{3}\left(3^{n}\right) \over 3^{n}}$
148949
Find the value of $\sum_{k=1}^{n} k \binom {n} {k}$
49052
Find $\sum_{n=1}^\infty \frac{n^3}{n!}$.
5049
Proving $\sum_{k=0}^n(-1)^k\binom nk=0$
65653
Find a closed form of the series $\sum_{n=0}^{\infty} n^2x^n$
47753
Closed form of series with factorial-squared denominator?
107976
Find a closed formula for $\sum_{n=1}^\infty nx^{n-1}$
39659
Is there a closed formula for this summation?
70248
Closed-form expression for $\sum_{k=0}^n\binom{n}kk^p$ for integers $n,\,p$
119552
Summing Finitely Many Terms of Harmonic Series: $\sum_{k=a}^{b} \frac{1}{k}$
146762
Closed form for $\sum_{k=0}^{n} \binom{n}{k}\frac{(-1)^k}{(k+1)^2}$
128608
Closed form for the series $a+a^p+(a^p)^p+\dots$
132984
$\sum\limits_{k=0}^{\frac{p-1}2}3^k\binom{p}{k}\equiv 2^p-1\pmod{p^2}$
23726
A closed form for $1^{2}-2^{2}+3^{2}-4^{2}+ \cdots + (-1)^{n-1}n^{2}$