  Let $\alpha$ be an algebraic integer of degree $d$, which is reciprocal. The
house of $\alpha$ is the largest modulus of its conjugates. We proved that
$d$-th power of the house of reciprocal $\alpha$ has a limit point. We
presented a property of antireciprocal hexanomials. We compute the minimum of
the houses of all reciprocal algebraic integers of degree $d$ having the
minimal polynomial which is a factor of a $D$-th degree reciprocal or
antireciprocal polynomial with at most eight monomials, say $\mathrm{mr}(d)$,
for $d$ at most 180, $D\le 1.5d$ and $D\le 210$. We show that it is not
necessary to take into account unprimitive polynomials. The computations
suggest several conjectures.
