\documentclass{standalone}
\usepackage[en]{supertensor}
\stdim{d}{3}
\begin{document}\begin{tikzpicture}
  \sttopformula{F}{$A$}
  \strow{row}{d}
    \stface{A}{}{d}{d}
  \strowend
\end{tikzpicture}\end{document}