cluster     1   number of spheres in cluster    20
    1 -30.32200  -7.54100  19.80600   0.700    1                                
    2 -29.90600  -8.89300  20.16000   0.700    2                                
    3 -27.70900 -10.70600  22.09700   0.700    3                                
    4 -30.55600 -12.23900  22.22900   0.700    4                                
    5 -29.24500  -6.57000  19.75600   0.700    5                                
    6 -27.55800  -8.05300  20.32000   0.700    6                                
    7 -27.94600 -12.19000  21.97000   0.700    7                                
    8 -28.06700 -10.43400  20.74100   0.700    8                                
    9 -29.30300 -12.28000  21.28300   0.700    9                                
   10 -28.00300  -6.88300  20.01200   0.700   10                                
   11 -28.50900  -9.07500  20.42000   0.700   11                                
   12 -26.82000 -12.93600  21.41900   0.700   12                                
   13 -29.55500  -5.53900  19.52300   0.700   13                                
   14 -26.44200  -8.22900  20.52000   0.700   14                                
   15 -31.62400 -14.22400  24.80700   0.700   15                                
   16 -28.99600 -11.29500  20.31200   0.700   16                                
   17 -32.31600 -12.59200  24.37500   0.700   17                                
   18 -30.72400 -13.27600  23.14400   0.700   18                                
   19 -30.60200 -12.56700  24.72800   0.700   19                                
   20 -31.39700 -13.18600  24.33800   0.700   20