Binomial Coefficient Summation
44111
Find the value of $\sum_{k=1}^{n}k\binom{n}{k}$?
48200
Simplify $\sum_{i=0}^n (i+1)\binom ni$
101573
Subtracting even and odd binomial coefficients?
5332
Find the value of $\sum_0^n \binom{n}{k} (-1)^k \frac{1}{k+1}$
65983
Combinatorial proof of binomial coefficient summation identity
87505
binomial coefficient equal to sum
39957
Product of binomial coefficient as a basis
86194
Infinite series with the binomial coefficient
105237
Alternating sum of binomial coefficients identity
87479
Closed form for $\sum_{k=0}^{n-p}\binom{n}{k}\binom{n}{p+k}$
15666
explanation for a combinatorial identity involving the binomial coefficient
133420
Computing the binomial series: $\binom{n}{2}\cdot2^2+\binom{n}{4}\cdot2^4+\binom{n}{6}\cdot2^6+\cdots+ \binom{n}{n}\cdot2^n$
22948
Is this binomial coefficient identity known?
74294
How to simplify $\sum_{i=1}^{k}\binom{n + i - 1}{i}$?
80155
Binomial coefficient problem
6803
Expression for power of a natural number in terms of binomial coefficients
127150
Finding general formula of $\sum_{i=0}^n i^2 \binom{n}{i}$