What is "Occ", "E", " r^2","Bnf" and "Vector" ?

                      DFT Final Molecular Orbital Analysis

                      ------------------------------------

Vector   36  Occ=2.000000D+00  E=-1.003594D+01

             MO Center=  4.0D+01,  3.2D+01,  1.9D+01, r^2= 2.8D-02

  Bfn.  Coefficient  Atom+Function         Bfn.  Coefficient  Atom+Function

 ----- ------------  ---------------      ----- ------------  ---------------

  262      0.563637  20 C  s               263      0.459316  20 C  s

Vector   37  Occ=2.000000D+00  E=-1.175142D+00

             MO Center=  4.0D+01,  2.9D+01,  2.4D+01, r^2= 8.3D-01

  Bfn.  Coefficient  Atom+Function         Bfn.  Coefficient  Atom+Function

 ----- ------------  ---------------      ----- ------------  ---------------

  500      0.414547  35 N  s               508      0.353656  35 N  s

  546      0.272788  37 O  s               523      0.267435  36 O  s

  504      0.221614  35 N  s               554     -0.187149  37 O  s

  550      0.179655  37 O  s               527      0.179511  36 O  s

  531     -0.164303  36 O  s

• vector - A single molecular orbital expressed as a linear combination of Gaussian atomic orbitals (LCAO), also referred to as basis functions
  
• Bfn - Refers to the contribution of a particular basis function to a given vector. The number under Bfn is the position of the basis function in the overall basis set, the coefficient is the weight of that basis function, next is the number of the atom in your geometry followed by its chemical symbol and the angular momentum of the basis function.
  
• Occ - The occupation number of the particular molecular orbital.
  
• E - The orbital energy, i.e. the eigenvalue of the Fock or Kohn-Sham matrix corresponding to the particular molecular orbital.
  
• r^2 - A measure for how diffuse a molecular orbital is.