Deriving formula for a series
562
Formula for calculating $\sum_{n=0}^{m}nr^n$
42708
Numerical Differentiation using Taylor series
107270
Calculate the following series using telescoping
62660
Computing the limit of an alternating series,
77519
I'm searching for the formula of the series $ \sum_{n=0}^{\infty}a^{n^l} $
148143
Find the sum to n terms as well as the sum to infinity of the series:
75279
Reversing the $T(n) = \frac{n(n+1)}{2}$ formula
69588
Convergence of a given series
111651
Determine if this series converges or diverges
151788
nth derivative of $\frac{e^x−1}{x}$ (both taylor series and finite sum)
44411
Show the series an/(1-an) converges given that series an converges
151477
computing the series $\sum_{n=1}^\infty \frac{1}{n^2 2^n}$
20945
On a series involving harmonic numbers
130083
Evaluating sum of a combination series
17172
Series $\frac{x^{3n}}{(3n)!} $ find sum using differentiation
116520
formula for the $n$th derivative of $e^{-1/x^2}$
123967
Proof of a generating functions formula