cluster     1   number of spheres in cluster     7
    1  44.18400  56.17600  37.99700   0.700    1                                
    2  45.68400  56.68800  39.78000   0.700    2                                
    3  46.42500  56.68600  37.49400   0.700    3                                
    4  44.95900  58.42300  38.23500   0.700    4                                
    5  46.06400  59.35100  38.72400   0.700    5                                
    6  45.31900  57.00700  38.39300   0.700    6                                
    7  46.00400  60.87300  37.75500   0.700    7