  A molecular description for magic-number configurations of interacting
electrons in a quantum dot in high magnetic fields developed by one of the
authors has been elaborated for four, five and six electron dots. For four
electrons, the magic spin-singlet states are found to alternate between two
different resonating valence bond (RVB)-like states. For the five-electron
spin-polarized case, the molecular description is shown to work for the known
phenomenon of magic-number sequences that correspond to both the N-fold
symmetric ring configuration and a $(N-1)$-fold symmetric one with a center
electron. A six-electron dot is shown here to have an additional feature in
which inclusion of quantum mechanical mixing between classical configurations,
which are deformed and degenerate, restores the N-fold symmetry and reproduces
the ground-state energy accurately.
