cluster     1   number of spheres in cluster    15
    1  76.67500  30.26800  40.82300   0.700    1                                
    2  77.41800  27.41600  42.36700   0.700    2                                
    3  76.96600  28.91300  40.30900   0.700    3                                
    4  77.27900  27.69900  40.90200   0.700    4                                
    5  77.42400  26.80300  39.77200   0.700    5                                
    6  76.17200  26.83300  43.04300   0.700    6                                
    7  77.76100  25.32800  39.82900   0.700    7                                
    8  76.44100  26.55100  44.55600   0.700    8                                
    9  74.99800  27.74800  42.85700   0.700    9                                
   10  77.21300  27.46400  38.61800   0.700   10                                
   11  77.95700  24.81000  40.99300   0.700   11                                
   12  75.61400  27.14100  45.32200   0.700   12                                
   13  77.83500  24.68400  38.74800   0.700   13                                
   14  77.40400  25.79300  44.82100   0.700   14                                
   15  76.93000  28.77300  38.96000   0.700   15