Product of two binomial coefficients in terms of linear combinations of binomial coefficients
39957
Product of binomial coefficient as a basis
91648
Binomial coefficient proof
133420
Computing the binomial series: $\binom{n}{2}\cdot2^2+\binom{n}{4}\cdot2^4+\binom{n}{6}\cdot2^6+\cdots+ \binom{n}{n}\cdot2^n$
39199
closed form for $\binom{n}{0}+\binom{n}{3}+\binom{n}{6}+...+\binom{n}{n}$
38032
Finding the M.G.F of product of two random variables.
109576
Prove that $\binom{m+n}{m}=\sum\limits_{i=0}^m \binom{m}{i}\binom{n}{i}$
10875
proof of binomial identity involving double sum
71769
Evaluation of ratio of two binomial expression
118372
Combination proof for $n(n+1)2^{n-2}=\sum_{k=1}^{n}k^2\binom{n}{k}$
47052
How can I simplify this expression involving binomial coefficients?
59638
How to prove this result on binomial coefficients?
142978
combinatorics: sum of product of integer compositions
15666
explanation for a combinatorial identity involving the binomial coefficient
52557
Derivation of binomial coefficient in binomial theorem.
9522
Proving $k \binom{n}{k} = n \binom{n-1}{k-1}$
105237
Alternating sum of binomial coefficients identity
4931
variation of the binomial theorem