cluster     1   number of spheres in cluster    20
    1  -1.43900   9.40500  12.50000   0.700    1                                
    2  -1.99900   9.64300  11.22000   0.700    2                                
    3  -1.56700   8.14700  13.11100   0.700    3                                
    4  -2.68900   8.60600  10.56100   0.700    4                                
    5  -3.32900   3.24500  14.69600   0.700    5                                
    6  -5.51200   4.36200  14.70600   0.700    6                                
    7  -3.87900   2.16500  15.41000   0.700    7                                
    8  -6.05600   3.27800  15.42000   0.700    8                                
    9  -4.14100   4.36300  14.33400   0.700    9                                
   10  -5.24000   2.18200  15.77200   0.700   10                                
   11  -2.25700   7.08800  12.46800   0.700   11                                
   12  -2.83300   7.32300  11.16100   0.700   12                                
   13  -2.34900   5.77000  13.19400   0.700   13                                
   14  -5.34000  -0.53600  15.98600   0.700   14                                
   15  -3.62300   5.48000  13.61900   0.700   15                                
   16  -1.36500   5.06900  13.36500   0.700   16                                
   17  -5.36000   0.85900  17.99700   0.700   17                                
   18  -7.32800   0.82600  16.53400   0.700   18                                
   19  -3.72200   6.01400  10.29700   0.700   19                                
   20  -5.91400   0.84200  16.67200   0.700   20