\begin{table}%T3
%\centering
\small
\caption{Rich open clusters with many stragglers.}
\label{tab:clusricos}
%\centering
\par
\begin{tabular}{llll} 
\hline\hline
 Berkeley~12 & Berkeley~14 & Berkeley~17 & Berkeley~18 \\
 Berkeley~21 &  Berkeley~22 & Berkeley~31 & Berkeley~39 \\ 
Berkeley~66 & Berkeley~70
 & Berkeley~99 & Collinder~110 \\ Collinder~261 &
 King~2 & King~11 & NGC~1193 \\ NGC~2141 &
NGC~2158 & NGC~2194 & NGC~6253 \\ Pismis~2 & Pismis~3 & 
Ruprecht~46 & Trumpler~5 \\
\hline
\end{tabular}
\end{table}