hamiltonian_matrix_N_3.dat

0	-1	-1	-1	0	0	-1	0	0	0	0	0	0	0	0	0	0	0	
-1	0	-1	0	-1	0	0	-1	0	0	0	0	0	0	0	0	0	0	
-1	-1	0	0	0	-1	0	0	-1	0	0	0	0	0	0	0	0	0	
-1	0	0	0	-1	-1	-1	0	0	0	0	0	0	0	0	0	0	0	
0	-1	0	-1	0	-1	0	-1	0	0	0	0	0	0	0	0	0	0	
0	0	-1	-1	-1	0	0	0	-1	0	0	0	0	0	0	0	0	0	
-1	0	0	-1	0	0	0	-1	-1	0	0	0	0	0	0	0	0	0	
0	-1	0	0	-1	0	-1	0	-1	0	0	0	0	0	0	0	0	0	
0	0	-1	0	0	-1	-1	-1	0	0	0	0	0	0	0	0	0	0	
0	0	0	0	0	0	0	0	0	0	-1	-1	-1	0	0	-1	0	0	
0	0	0	0	0	0	0	0	0	-1	0	-1	0	-1	0	0	-1	0	
0	0	0	0	0	0	0	0	0	-1	-1	0	0	0	-1	0	0	-1	
0	0	0	0	0	0	0	0	0	-1	0	0	0	-1	-1	-1	0	0	
0	0	0	0	0	0	0	0	0	0	-1	0	-1	0	-1	0	-1	0	
0	0	0	0	0	0	0	0	0	0	0	-1	-1	-1	0	0	0	-1	
0	0	0	0	0	0	0	0	0	-1	0	0	-1	0	0	0	-1	-1	
0	0	0	0	0	0	0	0	0	0	-1	0	0	-1	0	-1	0	-1	
0	0	0	0	0	0	0	0	0	0	0	-1	0	0	-1	-1	-1	0