  We study by means of exact-diagonalization techniques the ground state of a
few-fermion system with strong short-range repulsive interactions trapped by a
harmonic potential in one spatial dimension. Even when the ground-state density
profile displays at strong coupling very well pronounced Friedel oscillations
with a `4k_F periodicity', the pair correlation function does not show any
signature of Wigner-molecule-type correlations. For the sake of comparison, we
present also numerical results for few-electron systems with Coulomb
interactions, demonstrating that their ground state at strong coupling is, on
the contrary, a Wigner molecule.
