Vnn, where Ts, Vne, J, Vnn, and Exc stand for the total kinetic energy, nuclear-electron attraction, classical electron-electron Coulombic repulsion, nuclear-nuclear repulsion, and exchangecorrelation energy density functionals, respectively. Since Vne, Vnn and J are of the electrostatic nature, they can be put together yielding the total electrostatic energy Ee = Vne + J + Vnn so the total energy becomes the three-term summation, 8