cluster     1   number of spheres in cluster    18
    1  38.90800  60.00600  76.43300   0.700    1                                
    2  38.00500  61.03500  78.58800   0.700    2                                
    3  38.30300  58.63600  78.46400   0.700    3                                
    4  37.54400  60.89700  79.89900   0.700    4                                
    5  37.83900  58.49100  79.77700   0.700    5                                
    6  33.47200  58.92000  80.67700   0.700    6                                
    7  33.04400  58.61000  82.11000   0.700    7                                
    8  34.51200  60.01700  80.82800   0.700    8                                
    9  38.39000  59.90100  77.86300   0.700    9                                
   10  37.47600  59.63400  80.47900   0.700   10                                
   11  34.29700  58.86800  82.97600   0.700   11                                
   12  34.05900  59.41800  84.39800   0.700   12                                
   13  35.12100  59.75200  82.14400   0.700   13                                
   14  34.11600  60.77200  84.57600   0.700   14                                
   15  33.83500  58.68100  85.36400   0.700   15                                
   16  37.49500  60.61500  83.04900   0.700   16                                
   17  37.20300  58.06900  82.71000   0.700   17                                
   18  36.86300  59.50100  82.11900   0.700   18