cluster     1   number of spheres in cluster    19
    1  73.93900  48.06100   7.29700   0.700    1                                
    2  73.17000  49.17000   7.60100   0.700    2                                
    3  74.34000  46.31000   5.46000   0.700    3                                
    4  73.73100  46.13800   4.21900   0.700    4                                
    5  72.02600  49.00900   5.49100   0.700    5                                
    6  69.18500  48.60600   8.81400   0.700    6                                
    7  71.39500  50.86900   7.05300   0.700    7                                
    8  70.44900  50.69600   8.22300   0.700    8                                
    9  73.75300  47.42700   6.07600   0.700    9                                
   10  72.20100  49.63800   6.71900   0.700   10                                
   11  69.36500  49.68200   7.96500   0.700   11                                
   12  72.80300  47.90300   5.18200   0.700   12                                
   13  68.17000  47.70900   8.53500   0.700   13                                
   14  67.61800  48.93800   6.69300   0.700   14                                
   15  66.81500  49.08600   5.61700   0.700   15                                
   16  72.81100  47.10100   4.06200   0.700   16                                
   17  67.37800  47.86600   7.46800   0.700   17                                
   18  68.57800  49.87000   6.89500   0.700   18                                
   19  67.95900  46.64000   9.34900   0.700   19