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\newpage\section{Foster}\label{foster}
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%<–––––––––––––––––––– Foster –––––––––––––––––––––––––––––––>
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\begin{NewMacroBox}{grFoster}{\oarg{options}}
\medskip
From MathWord : \url{http://mathworld.wolfram.com/FosterGraph.html}
\emph{The Foster graph is a graph on 90 vertices and 135 arcs. It has a unique order-15 LCF notations.}
\href{http://mathworld.wolfram.com/topics/GraphTheory.html}%
{\textcolor{blue}{MathWorld}} by \href{http://en.wikipedia.org/wiki/Eric_W._Weisstein}%
{\textcolor{blue}{E.Weisstein}}
\end{NewMacroBox}
\subsection{\tkzname{Foster graph}}
The macros is based on
\begin{tkzexample}[code only]
\grLCF[Math,RA=7]{17, -9, 37, -37, 9, -17}{15}\end{tkzexample}
\vspace*{1cm}
\begin{center}
\begin{tkzexample}[vbox]
\begin{tikzpicture}[scale=.6]
\renewcommand*{\VertexInnerSep}{2pt}
\renewcommand*{\EdgeLineWidth}{0.5pt}
\GraphInit[vstyle=Art]
\tikzset{VertexStyle/.append style={minimum size=2pt}}
\SetGraphColor{red}{blue}
\grLCF[Math,RA=6]{17, -9, 37, -37, 9, -17}{15}
\end{tikzpicture}
\end{tkzexample}
\end{center}
\endinput
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