The program calculates the energy levels of a valance neutron or
proton inside of a square well nuclear potential plus the
Coulomb potential of a uniformly charged sphere. The radius of
the square well and the sphere is c = r_{0}A^{1/3}.
The results listed are for the different values of orbital
angular momentum l. Good choices are: 1.1 < r_{0} < 1.3 and
20 < V_{0} < 60. The program finds energies between
zero and -E_{start}.