cluster     1   number of spheres in cluster    21
    1  13.86900 -10.19200 -19.61300   0.700    1                                
    2  12.85100  -8.01500 -20.01000   0.700    2                                
    3  12.41200  -9.16100 -17.87500   0.700    3                                
    4  16.63800  -7.28800 -15.50900   0.700    4                                
    5  19.26000  -3.17400 -20.43300   0.700    5                                
    6  21.23100  -4.56000 -20.33500   0.700    6                                
    7  19.90500  -2.34300 -21.34700   0.700    7                                
    8  21.88300  -3.73300 -21.24300   0.700    8                                
    9  15.73900  -7.65200 -19.08100   0.700    9                                
   10  19.92100  -4.29600 -19.93900   0.700   10                                
   11  21.21200  -2.61800 -21.73800   0.700   11                                
   12  14.71700  -8.23900 -18.34100   0.700   12                                
   13  16.62400  -7.20300 -18.10900   0.700   13                                
   14  18.16200  -5.71500 -19.10100   0.700   14                                
   15  13.47200  -8.88800 -18.94800   0.700   15                                
   16  14.91200  -8.16600 -17.01000   0.700   16                                
   17  19.35300  -5.12200 -19.03600   0.700   17                                
   18  17.82800  -6.56000 -18.12100   0.700   18                                
   19  16.14900  -7.51300 -16.89400   0.700   19                                
   20  17.41200  -5.51100 -20.01900   0.700   20                                
   21  22.04000  -1.54100 -22.90600   0.700   21