\begin{equation*} \mu = np \end{equation*}

\begin{equation*} \sigma^2 = np(1-p) \end{equation*}

\begin{equation*} \gamma_1 = \frac{1-2p}{\sqrt{np(1-p)}} \end{equation*}

\begin{equation*} \gamma_2 = \frac{1-6p(1-p)}{np(1-p)} + 3 \end{equation*}