# Thread: combinations

1. ## combinations

$
% MathType!MTEF!2!1!+-
% feqaeaartrvr0aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuL wBLn
% hiov2DGi1BTfMBaeXatLxBI9gBaebbnrfifHhDYfgasaacH8sr ps0l
% bbf9q8WrFfeuY-Hhbbf9v8qqaqFr0xc9pk0xbba9q8WqFfea0-yr0R
% Yxir-Jbba9q8aq0-yq-He9q8qqQ8frFve9Fve9Ff0dmeaabaqaciGa
% caGaaeqabaaaamaaaOabaeqabaGaamOzaiaad+gacaWGYbGaaG jbVl
\begin{array}{l}
for\;all\;odd\;n \succ 1\quad ,prove\;that \\
^{4n} C_{2n} \;\;is\;divisible\;by(\;8n + 4) \\
\end{array}

$

2. have you tried to prove this? can you show your work

3. sure, i tried to solve it but no result

i put here the problems which i did not find asolution..