cluster     1   number of spheres in cluster    16
    1  11.85800   1.50200  20.69400   0.700    1                                
    2  10.23400   0.48200  23.92500   0.700    2                                
    3  14.80700   1.76100  22.38400   0.700    3                                
    4  10.00900  -1.02000  23.78100   0.700    4                                
    5  14.16900   0.46100  22.06000   0.700    5                                
    6  11.71500   0.85800  23.89600   0.700    6                                
    7  13.64900   2.64500  22.72800   0.700    7                                
    8   9.21100  -1.65700  24.92900   0.700    8                                
    9  13.88700  -0.26700  23.33100   0.700    9                                
   10   9.04600  -3.14500  24.66400   0.700   10                                
   11   9.82800  -1.44700  26.22600   0.700   11                                
   12  14.84700  -0.90300  23.79500   0.700   12                                
   13  12.66700  -0.26200  23.87900   0.700   13                                
   14   9.30400  -3.96900  25.60000   0.700   14                                
   15   8.64200  -3.48100  23.53300   0.700   15                                
   16  12.94800   2.81700  21.12600   0.700   16