How to create index entry for \n?

I can't get LaTeX to generate index entry for newline \n. I tried \index{"\\n"} and \index{"\n"} and \index{\n} and \index{\\n}. None of these seem to work.

I am getting errors like:

! LaTeX Error: There's no line here to end.

See the LaTeX manual or LaTeX Companion for explanation.
Type  H <return>  for immediate help.
...

l.14   \item \\n
|hyperpage, 19


Anyone knows?

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I am struggling to understand why you would need this. –  Nicholas Hamilton Apr 15 '13 at 5:02

\index{\n@\texttt{\string\n}}

\index{n@\texttt{\string\n}}