I'm trying to get Wolfram Alpha to output a table of values over the integers for a given function, in example:
n^2-n
1----1
4----2
9----3
... ...
(using '-'s instead of whitespace to separate the columns)
Despite being a rather simple thing my searches for a command that does this turn up nothing. Does anyone know how I can get it to do this?

How about Mathematica commands? This is always the best first idea when using wolfram alpha.
Table[n^2, {n,1,10}]for instance. If you want the table of the values of $n^2$ with $n$ between $1$ and $10$.