(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

For n even, C(n,n/2)/(2^(N+1)) > 1/(2*sqrt(n)).

2. Relevant equations

sqrt(2*pi*k) * k^k * e^-k < k! < sqrt(2*pi*k) * k^k * e^-k * (1 + 1/4*k)

3. The attempt at a solution

Have tried using the inequality to get lower bound for C(n,n/2), but get something smaller than 1/(2*sqrt(n)).

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# Homework Help: C(n,n/2)/(2^(N+1)) > 1/(2*sqrt(n))

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