How to determine the sum of a series that is neither geometric nor arithmetic but quadratic or cubic?
35525
Methods to compute $\sum_{k=1}^nk^p$ without Faulhaber's formula
44649
Summing a series having a geometric component
142985
Finding sum of series $\sum^{\infty}_{k=0}\frac{(k+1)(k+2)}{2^k}$
4573
Explicitly finding the sum of $\arctan(1/(n^2+n+1))$
53389
Consider the series $ ∑_{n=1}^∞ x^2+ n/n^2$ . Pick out the true statements:
131080
Geometric representation of the sum of a Geometric Series
121554
Finding $\sum\frac{1}{2^n(n+1)}$
36674
Summation of series $\sum_{n=1}^\infty \frac{n^a}{b^n}$?
47200
Geometric series for two-point function
52241
Calculate sum of series $\sum \frac{n^2}{n!}$
95739
Sum of tangent functions where arguments are in specific arithmetic series
22636
Find the sum of the series $\sum \limits_{n=1}^{\infty} \frac{2^{-n}(n+3)}{(n+1)(n+2)}$
28378
Find the infinite sum of the series $\sum_{n=1}^\infty \frac{1}{n^2 +1}$
58262
Find the sum of the series $1+\frac{1}{3}\cdot\frac{1}{4}+\frac{1}{5}\cdot\frac{1}{4^2}+\frac{1}{7}\cdot\frac{1}{4^3}+\cdots$
8905
Sum the series $\frac{3}{1⋅2⋅4}+\frac{4}{2⋅3⋅5}+ \frac{5}{3⋅4⋅6}+...\text{(upto n terms)}$
127806
How to find the sum of the series $\sum_{k=2}^\infty \frac{1}{k^2-1}$?
155367
summation of multiplying series with negative terms