cluster     1   number of spheres in cluster    18
    1 -10.54000  12.57400  20.41500   0.700    1                                
    2  -9.11000  12.14500  20.12900   0.700    2                                
    3 -10.63900  13.16700  21.82000   0.700    3                                
    4  -7.66400  15.33700  21.52100   0.700    4                                
    5  -5.84500  15.15200  19.76600   0.700    5                                
    6  -8.11600  13.25100  20.49100   0.700    6                                
    7  -8.38400  14.02500  21.77700   0.700    7                                
    8  -5.51600  15.05800  18.27100   0.700    8                                
    9  -4.05100  15.29500  18.09600   0.700    9                                
   10  -7.79600  16.67400  19.41200   0.700   10                                
   11  -7.33900  15.36300  20.02000   0.700   11                                
   12  -5.88500  13.77000  17.67600   0.700   12                                
   13  -3.37500  14.45500  17.45400   0.700   13                                
   14  -7.05600  17.67600  19.51900   0.700   14                                
   15  -3.57000  16.33500  18.59400   0.700   15                                
   16  -8.89900  16.68700  18.82600   0.700   16                                
   17  -9.78400  14.30900  21.96600   0.700   17                                
   18  -8.08600  14.27500  19.49800   0.700   18