cluster     1   number of spheres in cluster    20
    1  38.11200  31.66600  -9.09600   0.700    1                                
    2  35.94000  30.29000  -0.09600   0.700    2                                
    3  36.83700  30.93700  -9.43900   0.700    3                                
    4  35.81600  31.28800  -8.36600   0.700    4                                
    5  35.21000  30.02400  -7.78500   0.700    5                                
    6  34.39600  30.35600  -6.54000   0.700    6                                
    7  35.13200  29.89400  -5.27100   0.700    7                                
    8  34.54100  30.75900  -4.16000   0.700    8                                
    9  35.08700  30.41900  -2.78000   0.700    9                                
   10  34.41700  31.36100  -1.81300   0.700   10                                
   11  33.90400  33.51700  -0.29200   0.700   11                                
   12  37.04300  30.55100   0.92400   0.700   12                                
   13  34.69200  32.35800   0.38800   0.700   13                                
   14  36.61100  31.64200   1.91600   0.700   14                                
   15  35.90700  32.82800   1.21200   0.700   15                                
   16  35.29700  31.50300  -0.64300   0.700   16                                
   17  34.72600  34.34900  -1.16200   0.700   17                                
   18  37.21100  29.30300   1.62900   0.700   18                                
   19  37.80400  32.03700   2.62500   0.700   19                                
   20  35.47400  33.86200   2.10000   0.700   20