cluster     1   number of spheres in cluster    13
    1   5.09100   0.66100  14.99600   0.700    1                                
    2   8.51100   0.45600   9.86600   0.700    2                                
    3   9.38000  -0.06000  11.03400   0.700    3                                
    4   7.91200   1.85000  10.14700   0.700    4                                
    5   8.51300  -0.11800  12.30600   0.700    5                                
    6   5.74400   1.18000  11.26600   0.700    6                                
    7   7.08500   1.28800  13.90200   0.700    7                                
    8   3.63100   0.54400  12.31800   0.700    8                                
    9   7.10400   1.88500  11.43500   0.700    9                                
   10   7.95800   1.28100  12.63600   0.700   10                                
   11   4.96700   1.21200  12.59600   0.700   11                                
   12   5.77900   0.61000  13.71100   0.700   12                                
   13   3.56400  -0.68500  12.37700   0.700   13