cluster     1   number of spheres in cluster    20
    1  20.68200 -21.63400  -1.40600   0.700    1                                
    2  21.25800 -20.36300  -1.27900   0.700    2                                
    3  24.25800 -18.63200  -1.08400   0.700    3                                
    4  22.39000 -17.07900  -3.15200   0.700    4                                
    5  21.25200 -22.67900  -0.63800   0.700    5                                
    6  22.93500 -21.22200   0.20500   0.700    6                                
    7  24.23400 -17.15000  -1.37300   0.700    7                                
    8  22.93800 -18.82100  -0.39700   0.700    8                                
    9  22.76200 -16.90600  -1.70400   0.700    9                                
   10  22.39100 -22.48300   0.08400   0.700   10                                
   11  22.39300 -20.16600  -0.52600   0.700   11                                
   12  24.55200 -16.41500  -0.19700   0.700   12                                
   13  23.93500 -14.58100  -5.54200   0.700   13                                
   14  24.77300 -16.96600  -5.14200   0.700   14                                
   15  20.80900 -23.83300  -0.68100   0.700   15                                
   16  23.92500 -21.13900   0.89400   0.700   16                                
   17  22.60700 -16.61000  -6.20800   0.700   17                                
   18  22.03800 -17.85500  -0.94400   0.700   18                                
   19  22.75900 -15.91600  -3.89000   0.700   19                                
   20  23.59400 -16.03100  -5.22900   0.700   20