\begin{table}%t8
\caption{\label{tab8}Line strength (S) and A-coefficients for the forbidden
electric quadrupole (E2) and octupole (E3), and magnetic dipole (M1)
transitions in Fe~XX. The level numbers ($i,~j$) and configurations 
indices ($C_i$ and $C_j$) correspond to those in Table 7, such as $\rm 2s^22p^3$(1), 
$\rm 2s2p^4$(2), $\rm 2p^5$(3), $\rm 2s^22p^23s$(4), $\rm 2s^22p^23p$(5), etc.}
\scriptsize
%\centering
\par
\begin{tabular}{rrllrrrrlrl}
\noalign{\smallskip}
\hline\hline
\noalign{\smallskip}
$i$ & $j$ & $SL\pi$ & $SL\pi$  & $g_i$ & $g_j$ & $\lambda~(\AA)$ &
SE2 & AE2 & SM1 & AM1 \\
 & & $:C_i$ &$:C_j$  & & & & & s$^{-1}$ & & s$^{-1}$ \\
 \noalign{\smallskip}
\hline
 \noalign{\smallskip}
\multicolumn{11}{c}{E2 and M1} \\
 \noalign{\smallskip}
  2 & 1&4So:1&2Do:1&  4& 4&   721.40& 3.31E-04&7.11E-01& 7.98E-01&1.43E+04\\
  3 & 1&4So:1&2Do:1&  4& 6&   567.77& 6.92E-04&3.28E+00& 4.55E-02&1.12E+03\\
  3 & 2&2Do:1&2Do:1&  4& 6&  2666.08& 1.37E-03&2.84E-03& 1.78E+00&4.22E+02\\
  4 & 1&4So:1&2Po:1&  4& 2&   384.21& 6.35E-05&6.37E+00& 1.25E-01&2.97E+04\\
  4 & 2&2Do:1&2Po:1&  4& 2&   822.00& 2.41E-03&5.40E+00& 2.50E-01&6.06E+03\\
  4 & 3&2Do:1&2Po:1&  6& 2&  1188.40& 2.13E-03&7.55E-01& 0.00E+00&0.00E+00\\
  5 & 1&4So:1&2Po:1&  4& 4&   309.27& 4.45E-06&6.60E-01& 1.28E-01&2.91E+04\\
  5 & 2&2Do:1&2Po:1&  4& 4&   541.36& 8.13E-04&7.34E+00& 1.02E+00&4.34E+04\\
  5 & 3&2Do:1&2Po:1&  6& 4&   679.29& 5.30E-03&1.54E+01& 5.74E-01&1.24E+04\\
  5 & 4&2Po:1&2Po:1&  2& 4&  1585.64& 6.99E-04&2.93E-02& 9.59E-01&1.62E+03\\
  7 & 6&4Pe:2&4Pe:2&  6& 4&  1468.60& 2.15E-03&1.32E-01& 3.54E+00&7.54E+03\\
  8 & 6&4Pe:2&4Pe:2&  6& 2&  1116.08& 1.73E-03&8.39E-01& 0.00E+00&0.00E+00\\
  8 & 7&4Pe:2&4Pe:2&  4& 2&  4649.52& 2.07E-04&7.99E-05& 3.13E+00&4.20E+02\\
  9 & 6&4Pe:2&2De:2&  6& 4&   345.02& 1.35E-04&1.16E+01& 8.39E-04&1.38E+02\\
  9 & 7&4Pe:2&2De:2&  4& 4&   450.97& 1.32E-06&2.98E-02& 1.45E-01&1.07E+04\\
  9 & 8&4Pe:2&2De:2&  2& 4&   499.40& 9.50E-05&1.28E+00& 4.15E-02&2.25E+03\\
 \noalign{\smallskip}
% \hline\\[-2mm]
\multicolumn{11}{c}{E3} \\
 \noalign{\smallskip}
$i$ & $j$ & $SL\pi$ & $SL\pi$  & $g_i$ & $g_j$ & $\lambda~(\AA)$ &
SE3 & AE3 & & \\
 & & $:C_i$ &$:C_j$  & & & & & s$^{-1}$ & & \\
% \hline
 \noalign{\smallskip}
  6&  4&4Pe:2&2Po:1&  6& 2&   203.06& 4.17E-06&3.07E-05&&\\
  8&  3&4Pe:2&2Do:1&  2& 6&   150.10& 2.91E-08&5.33E-06&&\\
 10&  4&2De:2&2Po:1&  6& 2&   125.30& 1.41E-04&3.05E-02&&\\
 11&  3&2Se:2&2Do:1&  2& 6&    98.12& 1.49E-04&5.35E-01&&\\
 13&  3&2Pe:2&2Do:1&  2& 6&    85.92& 5.42E-04&4.93E+00&&\\
 15&  6&2Po:3&4Pe:2&  2& 6&    76.37& 1.59E-05&3.30E-01&&\\
 15& 10&2Po:3&2De:2&  2& 6&    99.62& 5.72E-04&1.85E+00&&\\
 16&  3&4Pe:4&2Do:1&  2& 6&    14.25& 1.23E-04&3.24E+05&&\\
 18&  3&2Pe:4&2Do:1&  2& 6&    14.01& 9.42E-04&2.80E+06&&\\
 19&  4&4Pe:4&2Po:1&  6& 2&    14.21& 8.80E-05&7.89E+04&&\\
 19& 15&4Pe:4&2Po:3&  6& 2&    19.10& 1.50E-06&1.70E+02&&\\
 21&  6&4Do:5&4Pe:2&  2& 6&    15.00& 1.98E-06&3.65E+03&&\\
\hline
\end{tabular}
\end{table}