\documentclass{standalone}
\input{common-headers}
\input{sigles}
\begin{document}
\begin{tikzpicture}
\draw (0,-1.0) node {$S$};
  \draw[thick,scale around={1.2:(1.5,1.5)}] (0,0) rectangle (3,3);
  \begin{scope}[dashed]
    \draw (1.1,1.1) rectangle (1.9,1.9);
    \draw (0,0) rectangle (0.9,1.9);
    \draw[rotate around={ 90:(1.5,1.5)}] (0,0) rectangle (0.9,1.9);
    \draw[rotate around={180:(1.5,1.5)}] (0,0) rectangle (0.9,1.9);
    \draw[rotate around={270:(1.5,1.5)}] (0,0) rectangle (0.9,1.9);
  \end{scope}
  \draw (1.5,-1.0) node {$s_1$};
% Middle S
\begin{scope}[xshift=4cm]
  \draw[thick,scale around={1.2:(1.5,1.5)}] (0,0) rectangle (3,3);
  \begin{scope}[dashed]
    \draw (1.1,1.1) rectangle (1.9,1.9);
    \draw (0,0) rectangle (1.9,0.9);
    \draw[rotate around={ 90:(1.5,1.5)}] (0,0) rectangle (1.9,0.9);
    \draw[rotate around={180:(1.5,1.5)}] (0,0) rectangle (1.9,0.9);
    \draw[rotate around={270:(1.5,1.5)}] (0,0) rectangle (1.9,0.9);
  \end{scope}
  \draw (1.5,-1.0) node {$s_2$};
\end{scope}
\draw (8.5,1.5) node {$\cdots$};
% Right S
\begin{scope}[xshift=10cm]
  \draw[thick,scale around={1.2:(1.5,1.5)}] (0,0) rectangle (3,3);
  \begin{scope}[dashed]
    \draw (1.1,1.1) rectangle (1.9,1.9);
    \draw (0,0) rectangle (0.9,0.9);
    \draw[rotate around={ 90:(1.5,1.5)}] (0,0) rectangle (0.9,0.9);
    \draw[rotate around={180:(1.5,1.5)}] (0,0) rectangle (0.9,0.9);
    \draw[rotate around={270:(1.5,1.5)}] (0,0) rectangle (0.9,0.9);
    \draw (1.1,0) rectangle ++(0.8,0.9);
    \draw[rotate around={ 90:(1.5,1.5)}] (1.1,0) rectangle ++(0.8,0.9);
    \draw[rotate around={180:(1.5,1.5)}] (1.1,0) rectangle ++(0.8,0.9);
    \draw[rotate around={270:(1.5,1.5)}] (1.1,0) rectangle ++(0.8,0.9);
  \end{scope}
  \draw (1.5,-1.0) node {$s_i$};
\end{scope}
\end{tikzpicture}
\end{document}