Funes el memorioso

%\documentclass{standalone}
\documentclass{article}
\usepackage{booktabs}
\newcommand{\ramuno}{\ensuremath{\iota}}

\begin{document}
\begin{table}[h]
  \centering
  \begin{tabular}{l|llll}
    \toprule
    \multicolumn{1}{c|}{order} &
    \multicolumn{1}{c}{$+1$} &
    \multicolumn{1}{c}{$-1$} &
    \multicolumn{1}{c}{$+\ramuno$} &
    \multicolumn{1}{c}{$-\ramuno$} \\
    \midrule
    $4m$   & $m+1$ & $m$   & $m$   & $m-1$ \\
    $4m+1$ & $m+1$ & $m$   & $m$   & $m$   \\
    $4m+2$ & $m+1$ & $m+1$ & $m$   & $m$   \\
    $4m+3$ & $m+1$ & $m+1$ & $m+1$ & $m$   \\
    \bottomrule
  \end{tabular}
\end{table}
\end{document}