cluster     1   number of spheres in cluster    15
    1  21.42100  61.87500  29.86000   0.700    1                                
    2  19.17400  61.94800  28.93700   0.700    2                                
    3  22.77200  61.76200  29.80900   0.700    3                                
    4  23.43700  61.57800  28.47500   0.700    4                                
    5  21.13900  61.60000  27.46300   0.700    5                                
    6  18.62100  63.25500  28.38400   0.700    6                                
    7  17.13100  63.21000  28.05600   0.700    7                                
    8  18.92700  64.38900  29.32000   0.700    8                                
    9  22.54800  61.50900  27.42000   0.700    9                                
   10  20.62000  61.77400  28.76600   0.700   10                                
   11  16.77900  62.21400  27.32600   0.700   11                                
   12  24.64200  61.47100  28.34500   0.700   12                                
   13  20.46300  61.52700  26.46900   0.700   13                                
   14  16.40700  64.05600  28.52900   0.700   14                                
   15  23.55700  61.86300  30.90200   0.700   15