N_e = 7
minimum energy: 14.45297741423

       x               y               z
-0.1360814850	-0.4437922071	-0.8857371542	
-0.2871413749	-0.0007778909	 0.9578878983	
-0.6848260114	-0.7192962692	 0.1167313636	
-0.7243766752	 0.6544903058	-0.2166122620	
 0.6006875229	 0.4450496761	-0.6641575760	
 0.5073614050	 0.7188168380	 0.4752754550	
 0.7243766107	-0.6544903806	 0.2166122518