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

\usepackage{amsfonts, amsmath, amssymb}

\begin{document}
\begin{tabular}{l}
{\huge type A4, s=0, subset=[]}\\ \\


$\displaystyle
\begin{array}{r|l l l l l l l l l l l}
	{\scriptstyle i+j=0}&\mathbb{C}&&&&&&&&&&\\
	{\scriptstyle i+j=2}&\mathbb{C}^{4}&\mathbb{C}&&&&&&&&&\\
	{\scriptstyle i+j=4}&\mathbb{C}^{9}&\mathbb{C}^{5}&\mathbb{C}&&&&&&&&\\
	{\scriptstyle i+j=6}&\mathbb{C}^{15}&\mathbb{C}^{14}&\mathbb{C}^{5}&\mathbb{C}&&&&&&&\\
	{\scriptstyle i+j=8}&\mathbb{C}^{20}&\mathbb{C}^{29}&\mathbb{C}^{15}&\mathbb{C}^{5}&\mathbb{C}&&&&&&\\
	{\scriptstyle i+j=10}&\mathbb{C}^{22}&\mathbb{C}^{44}&\mathbb{C}^{33}&\mathbb{C}^{15}&\mathbb{C}^{5}&\mathbb{C}&&&&&\\
	{\scriptstyle i+j=12}&\mathbb{C}^{20}&\mathbb{C}^{51}&\mathbb{C}^{54}&\mathbb{C}^{34}&\mathbb{C}^{15}&\mathbb{C}^{5}&\mathbb{C}&&&&\\
	{\scriptstyle i+j=14}&\mathbb{C}^{15}&\mathbb{C}^{46}&\mathbb{C}^{66}&\mathbb{C}^{58}&\mathbb{C}^{34}&\mathbb{C}^{15}&\mathbb{C}^{5}&\mathbb{C}&&&\\
	{\scriptstyle i+j=16}&\mathbb{C}^{9}&\mathbb{C}^{31}&\mathbb{C}^{56}&\mathbb{C}^{66}&\mathbb{C}^{54}&\mathbb{C}^{33}&\mathbb{C}^{15}&\mathbb{C}^{5}&\mathbb{C}&&\\
	{\scriptstyle i+j=18}&\mathbb{C}^{4}&\mathbb{C}^{15}&\mathbb{C}^{31}&\mathbb{C}^{46}&\mathbb{C}^{51}&\mathbb{C}^{44}&\mathbb{C}^{29}&\mathbb{C}^{14}&\mathbb{C}^{5}&\mathbb{C}&\\
	{\scriptstyle i+j=20}&\mathbb{C}&\mathbb{C}^{4}&\mathbb{C}^{9}&\mathbb{C}^{15}&\mathbb{C}^{20}&\mathbb{C}^{22}&\mathbb{C}^{20}&\mathbb{C}^{15}&\mathbb{C}^{9}&\mathbb{C}^{4}&\mathbb{C}\\
	\hline h^{i,j}&{\scriptstyle j-i=0}&{\scriptstyle j-i=2}&{\scriptstyle j-i=4}&{\scriptstyle j-i=6}&{\scriptstyle j-i=8}&{\scriptstyle j-i=10}&{\scriptstyle j-i=12}&{\scriptstyle j-i=14}&{\scriptstyle j-i=16}&{\scriptstyle j-i=18}&{\scriptstyle j-i=20}
\end{array}
$ \\ \\


$\displaystyle
\begin{array}{r|l l l l l l l l l l l}
	{\scriptstyle i+j=0}&1&&&&&&&&&&\\
	{\scriptstyle i+j=2}&4&1&&&&&&&&&\\
	{\scriptstyle i+j=4}&9&5&1&&&&&&&&\\
	{\scriptstyle i+j=6}&15&14&5&1&&&&&&&\\
	{\scriptstyle i+j=8}&20&29&15&5&1&&&&&&\\
	{\scriptstyle i+j=10}&22&44&33&15&5&1&&&&&\\
	{\scriptstyle i+j=12}&20&51&54&34&15&5&1&&&&\\
	{\scriptstyle i+j=14}&15&46&66&58&34&15&5&1&&&\\
	{\scriptstyle i+j=16}&9&31&56&66&54&33&15&5&1&&\\
	{\scriptstyle i+j=18}&4&15&31&46&51&44&29&14&5&1&\\
	{\scriptstyle i+j=20}&1&4&9&15&20&22&20&15&9&4&1\\
	\hline h^{i,j}&{\scriptstyle j-i=0}&{\scriptstyle j-i=2}&{\scriptstyle j-i=4}&{\scriptstyle j-i=6}&{\scriptstyle j-i=8}&{\scriptstyle j-i=10}&{\scriptstyle j-i=12}&{\scriptstyle j-i=14}&{\scriptstyle j-i=16}&{\scriptstyle j-i=18}&{\scriptstyle j-i=20}
\end{array}
$ \\ \\


$\displaystyle
\begin{array}{rll}
	\text{module}&\text{multiplicity}&\text{dimension} \\ \hline \text{all}&&1296 \\
	\mathbb{C}&1296&1
\end{array}
$ \\ \\

\end{tabular}
\end{document}
