Finite series identity
15100
Proving the identity $\sum_{k=1}^n {k^3} = \big(\sum_{k=1}^n k\big)^2$ without induction
47596
An infinite series plus a continued fraction by Ramanujan
151189
calculate the sum of an infinite series
109599
A finite sum involving the binomial coefficients and the harmonic numbers
96961
A proof for the identity $\sum_{n=r}^{\infty} {n \choose r}^{-1} = \frac{r}{r-1}$
120238
I have a question about properties of series.
105237
Alternating sum of binomial coefficients identity
156564
Prove the identity $\sum_{{{\underset{k-even}{k=0}}}}^{n}{n \choose k}2^{k}=\frac{3^{n}+(-1)^{n}}{2}$
119552
Summing Finitely Many Terms of Harmonic Series: $\sum_{k=a}^{b} \frac{1}{k}$
117775
Combinatorial proof of a Stirling number identity.
57416
Fibonacci identity: $f_{n-1}f_{n+1} - f_{n}^2 = (-1)^n$
113068
Identity of moment-generating functions
153295
Algebraic Identity $a^{n}-b^{n} = (a-b) \sum\limits_{k=0}^{n-1} a^{k}b^{n-1-k}$
22657
How to find the sum of the infinite series?
145900
Proof of a double summation reduction identity
31721
Series with specific notation
107397
Algebraic proof for the identity $\sum_{k=0}^m(-1)^{m-k}{{n \choose {k}}}= {{n-1}\choose m}$