\documentclass[crop,border=2mm]{standalone}

\usepackage{amsfonts, amsmath, amssymb}

\begin{document}
\begin{tabular}{l}
{\huge type A3, s=6, subset=[1, 2]}\\ \\


$\displaystyle
\begin{array}{r|l l l l}
	{\scriptstyle i+j=0}&L_{3,3,3}&&&\\
	{\scriptstyle i+j=2}&0&L_{3,3,2}L_{2,3,3}L_{4,3,2}L_{3,3,3}^{2}L_{2,3,4}L_{3,4,3}L_{4,4,3}L_{3,4,4}&&\\
	{\scriptstyle i+j=4}&0&0&L_{3,3,2}L_{2,3,3}L_{4,3,2}L_{3,3,3}^{2}L_{2,3,4}L_{3,4,3}L_{4,4,3}L_{3,4,4}&\\
	{\scriptstyle i+j=6}&0&0&0&L_{3,3,3}\\
	\hline h^{i,j}&{\scriptstyle j-i=0}&{\scriptstyle j-i=2}&{\scriptstyle j-i=4}&{\scriptstyle j-i=6}
\end{array}
$ \\ \\


$\displaystyle
\begin{array}{r|l l l l}
	{\scriptstyle i+j=0}&300&&&\\
	{\scriptstyle i+j=2}&0&3969&&\\
	{\scriptstyle i+j=4}&0&0&3969&\\
	{\scriptstyle i+j=6}&0&0&0&300\\
	\hline h^{i,j}&{\scriptstyle j-i=0}&{\scriptstyle j-i=2}&{\scriptstyle j-i=4}&{\scriptstyle j-i=6}
\end{array}
$ \\ \\


$\displaystyle
\begin{array}{rll}
	\text{module}&\text{multiplicity}&\text{dimension} \\ \hline \text{all}&&8538 \\
	L\left( 3\alpha_{1}+ 3\alpha_{2}+ 3\alpha_{3}\right)&6&300\\
	L\left( 3\alpha_{1}+ 3\alpha_{2}+ 2\alpha_{3}\right)&2&256\\
	L\left( 2\alpha_{1}+ 3\alpha_{2}+ 3\alpha_{3}\right)&2&256\\
	L\left( 4\alpha_{1}+ 3\alpha_{2}+ 2\alpha_{3}\right)&2&189\\
	L\left( 2\alpha_{1}+ 3\alpha_{2}+ 4\alpha_{3}\right)&2&189\\
	L\left( 3\alpha_{1}+ 4\alpha_{2}+ 3\alpha_{3}\right)&2&729\\
	L\left( 4\alpha_{1}+ 4\alpha_{2}+ 3\alpha_{3}\right)&2&875\\
	L\left( 3\alpha_{1}+ 4\alpha_{2}+ 4\alpha_{3}\right)&2&875
\end{array}
$ \\ \\

\end{tabular}
\end{document}
