cluster     1   number of spheres in cluster    19
    1  -4.09200   2.04700  15.11400   0.700    1                                
    2  -3.51300   3.10300  14.40100   0.700    2                                
    3  -5.88100   3.52800  15.75000   0.700    3                                
    4  -3.01600   6.51600  11.51300   0.700    4                                
    5  -2.36600   7.22900  12.71300   0.700    5                                
    6  -2.83200   6.47400  13.96800   0.700    6                                
    7  -5.29200   2.25700  15.78500   0.700    7                                
    8  -4.12800   4.35200  14.31900   0.700    8                                
    9  -5.25900   4.60100  15.11900   0.700    9                                
   10  -3.73900   5.34000  12.12000   0.700   10                                
   11  -5.54000  -0.38000  16.06600   0.700   11                                
   12  -3.57600   5.33500  13.44600   0.700   12                                
   13  -5.76700   5.84800  15.32800   0.700   13                                
   14  -4.36200   4.51400  11.43900   0.700   14                                
   15  -5.34800   6.46900  16.28700   0.700   15                                
   16  -6.61200   6.26400  14.55600   0.700   16                                
   17  -7.48700   1.10900  16.63000   0.700   17                                
   18  -5.48400   1.01000  18.10300   0.700   18                                
   19  -6.05000   0.98500  16.78600   0.700   19