[OS X TeX] Inserting lines in a tableau

[Nitecki, Zbigniew H.]

I am trying to create a table in which each line starts one space later (i.e., it looks like the upper triangular part of a matrix).  The first entry of each
row is essentially the row number.  The code in the first attachment yields a good version of this (see pdf in second attachment, but I would like
to also create a grid of lines separating the entries.  I can certainly put in horizontal lines using \hline, but how do I get vertical lines that line up
in the columns (like I would get if I used a format {|c|c|c|c|}), but do not extend down into the rows where nothing is supposed to appear?



Zbigniew Nitecki
Department of Mathematics
Tufts University
Medford, MA 02155

telephones:
Office    (617)627-3843
Dept.    (617)627-3234
Dept. fax    (617)627-3966
http://www.tufts.edu/~znitecki/




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