cluster     1   number of spheres in cluster    21
    1 -26.48500  29.86400   6.22000   0.700    1                                
    2 -29.08600  33.91300   5.97200   0.700    2                                
    3 -24.44200  31.23200   4.29400   0.700    3                                
    4 -25.32800  32.38800   3.78600   0.700    4                                
    5 -27.16900  34.93400   4.02100   0.700    5                                
    6 -28.39500  35.72500   3.52900   0.700    6                                
    7 -28.88800  31.00400   4.68300   0.700    7                                
    8 -26.42900  27.13700   4.65500   0.700    8                                
    9 -29.78900  32.16000   4.25500   0.700    9                                
   10 -27.21600  28.39400   4.25300   0.700   10                                
   11 -24.27700  28.63000   4.43800   0.700   11                                
   12 -25.12500  29.85800   3.97800   0.700   12                                
   13 -26.76500  32.37000   4.40100   0.700   13                                
   14 -27.64300  33.48500   3.83100   0.700   14                                
   15 -27.43500  30.98300   4.10000   0.700   15                                
   16 -29.58700  34.72200   3.59600   0.700   16                                
   17 -24.97300  27.34800   4.13600   0.700   17                                
   18 -26.58900  29.76200   4.63700   0.700   18                                
   19 -29.10100  33.53900   4.42600   0.700   19                                
   20 -30.72400  35.37900   4.16600   0.700   20                                
   21 -24.46500  26.43800   3.47900   0.700   21