cluster     1   number of spheres in cluster    13
    1  -4.39300   7.43300  12.83100   0.700    1                                
    2  -6.70300   6.62700  12.99500   0.700    2                                
    3  -4.40900   1.43700  14.88000   0.700    3                                
    4  -4.28500   2.89000  14.50400   0.700    4                                
    5  -4.80700   5.18700  13.72000   0.700    5                                
    6  -5.15500  -0.44600  16.56200   0.700    6                                
    7  -3.21300   3.71200  14.42800   0.700    7                                
    8  -3.51200   5.01000  13.99200   0.700    8                                
    9  -5.29900   6.38100  13.23700   0.700    9                                
   10  -6.55100   1.43400  16.17200   0.700   10                                
   11  -4.52900   1.65100  17.37900   0.700   11                                
   12  -5.72000   3.74800  14.02100   0.700   12                                
   13  -5.22400   1.07800  16.28200   0.700   13