cluster     1   number of spheres in cluster    21
    1  20.12400   0.83200  14.29900   0.700    1                                
    2  24.33300  -2.28500  14.03400   0.700    2                                
    3  25.12100   1.28100  14.94500   0.700    3                                
    4  22.66200  -3.06600  12.31700   0.700    4                                
    5  24.26800  -1.00200  14.89100   0.700    5                                
    6  23.81000   1.84900  14.35200   0.700    6                                
    7  22.57900   1.01200  14.77100   0.700    7                                
    8  22.84700  -0.50900  14.59700   0.700    8                                
    9  21.94500  -2.84200  10.98500   0.700    9                                
   10  21.51200  -4.23100  10.44800   0.700   10                                
   11  24.50200  -1.41400  11.67600   0.700   11                                
   12  23.53400  -1.88700  12.78000   0.700   12                                
   13  20.74700  -2.00300  11.18300   0.700   13                                
   14  21.40300   1.46600  13.96100   0.700   14                                
   15  23.92700   1.89700  12.91400   0.700   15                                
   16  22.40900  -5.09500  10.25600   0.700   16                                
   17  24.54900  -0.18200  11.42400   0.700   17                                
   18  20.30600  -4.40900  10.17800   0.700   18                                
   19  25.16000  -2.30100  11.09400   0.700   19                                
   20  25.28400  -0.07100  14.41800   0.700   20                                
   21  22.60800  -0.83500  13.18800   0.700   21