cluster     1   number of spheres in cluster    20
    1   0.56600  11.58400  12.84300   0.700    1                                
    2  -5.57800   4.45500  14.91700   0.700    2                                
    3  -3.42400   3.47000  15.04400   0.700    3                                
    4  -6.11900   3.37700  15.61400   0.700    4                                
    5  -3.93600   2.41300  15.73000   0.700    5                                
    6  -1.84500   6.96700  12.91900   0.700    6                                
    7  -1.46600   7.95400  14.06100   0.700    7                                
    8   0.67000  10.57900  14.95100   0.700    8                                
    9  -0.72100  10.07300  14.70300   0.700    9                                
   10  -4.25400   4.51900  14.63000   0.700   10                                
   11  -5.28600   2.35100  16.01800   0.700   11                                
   12  -3.75700   5.71900  13.87500   0.700   12                                
   13  -5.40700  -0.33900  16.22500   0.700   13                                
   14  -2.46800   5.75500  13.51800   0.700   14                                
   15  -4.45200   6.70900  13.70800   0.700   15                                
   16  -5.37500   1.08300  18.26200   0.700   16                                
   17  -7.37600   1.05800  16.76800   0.700   17                                
   18   1.39900  11.25400  13.96000   0.700   18                                
   19  -0.87200   9.15600  13.63200   0.700   19                                
   20  -5.94500   0.96400  16.91700   0.700   20