cluster     1   number of spheres in cluster    21
    1  53.58300   3.68500   6.34500   0.700    1                                
    2  56.25000  -0.32600   6.12000   0.700    2                                
    3  51.68100   2.38100   4.24500   0.700    3                                
    4  52.60600   1.25800   3.74000   0.700    4                                
    5  54.45400  -1.31300   4.01700   0.700    5                                
    6  55.72100  -2.10300   3.64400   0.700    6                                
    7  56.09000   2.61100   4.92600   0.700    7                                
    8  53.57400   6.44900   4.92600   0.700    8                                
    9  57.02300   1.47900   4.49700   0.700    9                                
   10  54.41000   5.23800   4.49600   0.700   10                                
   11  51.47500   4.94700   4.49700   0.700   11                                
   12  52.36400   3.76600   4.03000   0.700   12                                
   13  54.00300   1.25400   4.45600   0.700   13                                
   14  54.93400   0.15300   3.90400   0.700   14                                
   15  54.68000   2.65100   4.25000   0.700   15                                
   16  56.88100  -1.07400   3.74200   0.700   16                                
   17  52.16900   6.25700   4.28500   0.700   17                                
   18  53.78500   3.84400   4.78300   0.700   18                                
   19  56.34800   0.08500   4.58700   0.700   19                                
   20  58.01700  -1.72900   4.30800   0.700   20                                
   21  51.71000   7.15800   3.62000   0.700   21