\begin{table}%t1
\caption{\label{bench_basis}Electron configuration basis for the 72CF calculation.}
\par
%\centering
\par
\begin{tabular}{lllllll}
\hline\hline\noalign{\smallskip}
 & 3s$^2$~3p$^2$       & 3s~3p$^3$       & & & & \\
 & 3p$^4$               &                  & & & & \\
 & 3s~3p$^2$~3d & 3s$^2$~3p~3d         & & & & \\
 &                & 3p$^3$~3d             & & & & \\
 & 3s$^2$~3d$^2$ & 3s~3p~3d$^2$         & & & & \\
 & 3p$^2$~3d$^2$     &                    & & & & \\
 & 3s~3d$^3$ &  3p~3d$^3$                & & & & \\
 & 3s$^2$~3p~\ol{4}$l$ & 3s~3p$^2$~\ol{4}$l$ & 3p$^3$~\ol{4}$l$ & 3s$^2$~3d~\ol{4}$l$   & 3s~3p~3d~\ol{4}$l$   & $l$ = 0, 1, 2, 3  \\
 & 3s$^2$~3p~\ol{5}$l$ & 3s~3p$^2$~\ol{5}$l$ & 3p$^3$~\ol{5}$l$  & 3s$^2$~3d~\ol{5}$l$  & 3s~3p~3d~\ol{5}$l$   & $l$ = 0, 1, 2, 3, 4  \\
 & 3s$^2$~\ol{4}$l$$^2$ & 3s~3p~\ol{4}$l$$^2$ &
3p$^2$~\ol{4}$l$$^2$ & 3p~3d~\ol{4}$l$$^2$ &  &
$l$ = 0, 1, 2, 3 \\
\hline
\end{tabular}
\end{table}