cluster     1   number of spheres in cluster    21
    1 -14.06000   9.69800 -19.13700   0.700    1                                
    2 -13.07600   7.49800 -19.73500   0.700    2                                
    3 -12.53200   8.54400 -17.55900   0.700    3                                
    4 -16.93400   6.86500 -15.21100   0.700    4                                
    5 -19.18000   2.36000 -20.00300   0.700    5                                
    6 -21.23700   3.64600 -19.83400   0.700    6                                
    7 -19.84500   1.42500 -20.82900   0.700    7                                
    8 -21.90000   2.72200 -20.65400   0.700    8                                
    9 -15.85700   7.03000 -18.78000   0.700    9                                
   10 -19.89000   3.47200 -19.52200   0.700   10                                
   11 -21.20500   1.60900 -21.14700   0.700   11                                
   12 -14.88800   7.66500 -18.03300   0.700   12                                
   13 -16.78600   6.62000 -17.81700   0.700   13                                
   14 -18.11800   4.92100 -18.71000   0.700   14                                
   15 -13.64700   8.33200 -18.60300   0.700   15                                
   16 -15.18400   7.67500 -16.72200   0.700   16                                
   17 -19.34400   4.40900 -18.73000   0.700   17                                
   18 -17.94100   5.92300 -17.85500   0.700   18                                
   19 -16.40800   7.00000 -16.60300   0.700   19                                
   20 -17.21300   4.53400 -19.41400   0.700   20                                
   21 -22.08400   0.41600 -22.15700   0.700   21