cluster     1   number of spheres in cluster    20
    1  15.25300  31.10300  19.45600   0.700    1                                
    2  13.53500  29.85100  20.87200   0.700    2                                
    3  14.60800  30.57300  18.29400   0.700    3                                
    4  12.89500  29.32400  19.67400   0.700    4                                
    5  17.70400  34.30400  25.19300   0.700    5                                
    6  17.15400  31.92000  25.81500   0.700    6                                
    7  15.44100  30.23400  23.03000   0.700    7                                
    8  14.68200  30.71200  20.71900   0.700    8                                
    9  13.50100  29.73400  18.43200   0.700    9                                
   10  17.70700  33.19700  26.10300   0.700   10                                
   11  17.11400  34.15000  23.89900   0.700   11                                
   12  16.55500  31.73500  24.52200   0.700   12                                
   13  15.35800  31.21400  22.02700   0.700   13                                
   14  16.54000  32.84500  23.57900   0.700   14                                
   15  15.91200  32.62500  22.23900   0.700   15                                
   16  12.94600  29.25800  17.24100   0.700   16                                
   17  18.27800  33.33200  27.36700   0.700   17                                
   18  17.08200  35.18900  22.98800   0.700   18                                
   19  15.84300  33.48400  21.37100   0.700   19                                
   20  16.03600  30.47400  24.29600   0.700   20