Sum of series having binomial coefficients
32791
Proving this binomial identity $\sum_{k=0}^n {n+k \choose k} \frac{1}{2^{k}}= 2^{n}$
113713
Closed formula for the sum of the following series
151477
computing the series $\sum_{n=1}^\infty \frac{1}{n^2 2^n}$
45588
Summing a series with a changing power
22636
Find the sum of the series $\sum \limits_{n=1}^{\infty} \frac{2^{-n}(n+3)}{(n+1)(n+2)}$
151189
calculate the sum of an infinite series
59252
Show $\sum_{k=0}^{m} \binom{n-k}{m-k}=\binom{n+1}{m}$
102339
How to compute the sum of a series
117863
Series $\sum_{n=1}^\infty \frac{n^n}{(n!)^2}$
142303
Alternating sum of binomial coefficients multiplied by (1/k+1)
87479
Closed form for $\sum_{k=0}^{n-p}\binom{n}{k}\binom{n}{p+k}$
122236
How to compute the series: $\sum_{n=0}^{\infty} (-1)^{n-1}\binom{1/2}{n}$
130083
Evaluating sum of a combination series
94943
Sum of series with addition: $\sum_{n=1}^\infty \frac{1}{n^2(n+1)}$
70018
Sum of series (telescoping)
50812
Partial sum of the series $\sum\limits_{r=1}^{\infty} \frac{1}{r(r+1)}$
52241
Calculate sum of series $\sum \frac{n^2}{n!}$