SG level 7, with level 6 splines space approximation and dirichlet boundary condition. Random potential is on level 5 with p = 0.2
Code used to generate the picture  
Max Potential = 0  
Eigenfunctions  
Eigenvalue counting function  
Max Potential = 200  
Eigenfunctions  
Eigenvalue counting function  
Max Potential = 1600  
Eigenfunctions  
Eigenvalue counting function  
Max Potential = 3200  
Eigenfunctions  
Eigenvalue counting function  
Max Potential = 6400  
Eigenfunctions  
Eigenvalue counting function  
Max Potential = 12800  
Eigenfunctions  
Eigenvalue counting function  
Max Potential = 102400  
Eigenfunctions  
Eigenvalue counting function