cluster     1   number of spheres in cluster     6
    1  13.50700   4.23500  80.72500   0.700    1                                
    2  14.32700   3.23600  79.91000   0.700    2                                
    3  14.20900   3.41900  78.40500   0.700    3                                
    4  12.75500   3.48500  77.97300   0.700    4                                
    5  12.62200   3.54500  76.46400   0.700    5                                
    6  11.19700   3.66900  76.08800   0.700    6