cluster     1   number of spheres in cluster    15
    1  18.81500  28.31400  15.62500   0.700    1                                
    2  19.04100  27.17100  16.41200   0.700    2                                
    3  18.12500  29.41000  16.12300   0.700    3                                
    4  18.80900  26.08600  20.10300   0.700    4                                
    5  18.76000  27.56400  20.51800   0.700    5                                
    6  19.04100  25.93300  18.61400   0.700    6                                
    7  18.65200  27.13800  17.75500   0.700    7                                
    8  17.62700  29.32200  17.42200   0.700    8                                
    9  17.98800  28.25800  18.28700   0.700    9                                
   10  17.88600  28.37600  19.65800   0.700   10                                
   11  14.77400  31.02900  18.60600   0.700   11                                
   12  15.05400  28.62500  19.11300   0.700   12                                
   13  14.60200  29.30200  16.79300   0.700   13                                
   14  16.75000  30.28900  17.87100   0.700   14                                
   15  15.29200  29.70100  18.05100   0.700   15