  Let $\Lambda$ be a radical square zero Nakayama algebra with $n$ simple
modules and let $\Gamma$ be the Auslander algebra of $\Lambda$. Then every
indecomposable direct summand of a tilting $\Gamma$-module is either simple or
projective. Moreover, if $\Lambda$ is self-injective, then the number of
tilting $\Gamma$-modules is $2^n$; otherwise, the number of tilting
$\Gamma$-modules is $2^{n-1}$.
