cluster     1   number of spheres in cluster    15
    1  77.62700  28.02200  41.77300   0.700    1                                
    2  77.71500  27.00800  43.92300   0.700    2                                
    3  77.62600  28.07900  40.44100   0.700    3                                
    4  77.76100  26.75800  39.67600   0.700    4                                
    5  77.89300  25.63300  41.90200   0.700    5                                
    6  76.41700  26.46800  44.44300   0.700    6                                
    7  76.43000  26.13100  45.91500   0.700    7                                
    8  75.31100  27.46100  44.16400   0.700    8                                
    9  77.86400  25.65200  40.49200   0.700    9                                
   10  77.78000  26.89700  42.48600   0.700   10                                
   11  77.38600  25.34700  46.28100   0.700   11                                
   12  77.76200  26.67200  38.47100   0.700   12                                
   13  77.97500  24.61800  42.53300   0.700   13                                
   14  75.59600  26.64800  46.60900   0.700   14                                
   15  77.33900  29.96400  39.46400   0.700   15