% John David Stone
% Department of Mathematics and Computer Science
% Grinnell College
% stone@cs.grinnell.edu

% created June 19, 2002
% last revised June 19, 2002

\documentclass[11pt]{article}

\begin{document}
\begin{displaymath}
\left(
\begin{array}{ccccc}
\rule[-10 pt]{0 pt}{0 pt}
1           & \frac{1}{2}     & \frac{1}{3}     & \cdots & \frac{1}{n} \\
\frac{1}{2} & \frac{1}{3}     & \frac{1}{4}     & \cdots & \frac{1}{n + 1} \\
\vdots      & \vdots          & \vdots          & \ddots & \vdots \\
\frac{1}{n} & \frac{1}{n + 1} & \frac{1}{n + 2} & \cdots & \frac{1}{2n - 1}
\end{array}
\right)
\end{displaymath}
\end{document}