  We obtain a complete description of the integer group determinants for
SmallGroup(16,13), the central product of the dihedral group of order eight and
cyclic group of order four.
  These values are the same as the integer group determinants for
SmallGroup(16,11), the direct product of the dihedral group of order eight and
cyclic group of order two. It was not previously known that the integer group
determinants do not determine the group.
