%tikz
\begin{tikzpicture}[every node/.style={draw,scale=1pt,
minimum width=30pt,inner sep=3pt,
line width=0pt,draw=black}]
\matrix[row sep=2pt,column sep=2pt]
{\node[fill=-red!20]{861};&
\node[fill=-red]{863};&
\node[]{865};&
\node[fill=-red!20]{867};&
\node[]{869};&
\node[]{871};&
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\node[]{875};&
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\node[left color=-red,right color=-red!50]{881};&
\node[left color=-red,right color=-red!50]{883};&
\node[fill=-red!20]{885};&
\node[fill=-red]{887};&
\node[]{889};\\
\node[fill=-red!20]{831};&
\node[]{833};&
\node[]{835};&
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\node[]{841};&
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\node[]{851};&
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\node[left color=-red,right color=-red!50]{857};&
\node[left color=-red,right color=-red!50]{859};\\
\node[fill=-red!20]{801};&
\node[]{803};&
\node[]{805};&
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\node[left color=-red,right color=-red!50]{809};&
\node[left color=-red,right color=-red!50]{811};&
\node[fill=-red!20]{813};&
\node[]{815};&
\node[]{817};&
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\node[left color=-red,right color=-red!50]{821};&
\node[left color=-red,right color=-red!50]{823};&
\node[fill=-red!20]{825};&
\node[left color=-red,right color=-red!50]{827};&
\node[left color=-red,right color=-red!50]{829};\\
};
\end{tikzpicture}
