cluster     1   number of spheres in cluster    19
    1  18.75100  35.76100   8.26500   0.700    1                                
    2  18.62000  36.87700   9.15100   0.700    2                                
    3  18.61300  35.92000   6.85800   0.700    3                                
    4  18.35000  38.16600   8.63200   0.700    4                                
    5  18.19800  37.39300   4.91000   0.700    5                                
    6  17.94200  39.62500   6.66300   0.700    6                                
    7  18.34100  37.21100   6.32400   0.700    7                                
    8  18.21100  38.34200   7.21700   0.700    8                                
    9  17.93000  38.68000   4.37500   0.700    9                                
   10  17.80600  39.78100   5.26100   0.700   10                                
   11  17.79500  38.77800   2.89500   0.700   11                                
   12  18.27200  39.69900   0.81400   0.700   12                                
   13  16.83200  38.02200   0.92100   0.700   13                                
   14  18.95900  40.61600   0.13000   0.700   14                                
   15  15.99000  37.15200   0.35500   0.700   15                                
   16  18.46700  39.68900   2.12900   0.700   16                                
   17  16.94800  37.92500   2.24000   0.700   17                                
   18  17.46100  38.88800   0.12500   0.700   18                                
   19  17.45500  41.52800   4.69500   0.700   19