cluster     1   number of spheres in cluster    16
    1  18.13800  -5.35500  52.70300   0.700    1                                
    2  17.77900  -4.23400  53.47100   0.700    2                                
    3  17.85800  -5.06700  51.38700   0.700    3                                
    4  17.28800  -3.28900  52.61100   0.700    4                                
    5  16.58600   0.60500  49.47900   0.700    5                                
    6  14.54700  -0.17000  50.64700   0.700    6                                
    7  15.30900   0.86900  50.05100   0.700    7                                
    8  17.10300  -0.71600  49.50800   0.700    8                                
    9  15.07500  -1.48900  50.66900   0.700    9                                
   10  16.35800  -1.76400  50.09900   0.700   10                                
   11  16.91800  -3.13300  50.12500   0.700   11                                
   12  17.33000  -3.79200  51.31100   0.700   12                                
   13  14.78600   2.12900  50.04700   0.700   13                                
   14  18.33200  -0.92700  48.95000   0.700   14                                
   15  14.35200  -2.50100  51.24500   0.700   15                                
   16  17.04000  -3.73100  49.05000   0.700   16