cluster     1   number of spheres in cluster    21
    1  17.27200   6.60600  72.86000   0.700    1                                
    2  16.99900   7.74200  73.67900   0.700    2                                
    3  16.10300   5.32900  74.36400   0.700    3                                
    4  20.47100   3.29100  71.70300   0.700    4                                
    5  19.49100   4.33800  69.85400   0.700    5                                
    6  21.83600   3.68200  69.40400   0.700    6                                
    7  16.80700   5.36700  73.19700   0.700    7                                
    8  16.25800   7.70800  74.83000   0.700    8                                
    9  20.61900   3.73300  70.37400   0.700    9                                
   10  15.78500   6.41500  75.19000   0.700   10                                
   11  19.29800   3.32100  72.43800   0.700   11                                
   12  18.27700   4.50300  70.52700   0.700   12                                
   13  18.11700   3.93300  71.82500   0.700   13                                
   14  23.06100   3.18400  69.56500   0.700   14                                
   15  15.99800   8.68100  75.45600   0.700   15                                
   16  24.10000   3.22200  69.00100   0.700   16                                
   17  23.10700   2.56800  70.47100   0.700   17                                
   18  16.95800   4.17900  72.44100   0.700   18                                
   19  14.66100   6.07400  76.87300   0.700   19                                
   20  19.24100   2.63000  74.38000   0.700   20                                
   21  16.57700   5.10800  69.57500   0.700   21