cluster     1   number of spheres in cluster     7
    1  17.71600  64.24400  14.09700   0.700    1                                
    2  20.07600  63.52000  14.28300   0.700    2                                
    3  20.97600  65.83500  12.81900   0.700    3                                
    4  19.13600  64.74100  14.32500   0.700    4                                
    5  19.57700  65.97900  13.47200   0.700    5                                
    6  18.52800  66.49600  12.57500   0.700    6                                
    7  21.07400  65.36600  11.65300   0.700    7