cluster     1   number of spheres in cluster    21
    1 -26.63300  -3.72400   6.73000   0.700    1                                
    2 -29.13500   0.36900   6.29900   0.700    2                                
    3 -24.64200  -2.61600   4.62200   0.700    3                                
    4 -25.49900  -1.47100   4.06000   0.700    4                                
    5 -27.22400   1.18900   4.19600   0.700    5                                
    6 -28.47200   2.04900   3.81700   0.700    6                                
    7 -29.08100  -2.61100   5.22400   0.700    7                                
    8 -26.74400  -6.59000   5.43400   0.700    8                                
    9 -29.95000  -1.45300   4.73500   0.700    9                                
   10 -27.50400  -5.33900   4.93900   0.700   10                                
   11 -24.55300  -5.21400   4.98300   0.700   11                                
   12 -25.38100  -3.98000   4.45300   0.700   12                                
   13 -26.90500  -1.37600   4.74000   0.700   13                                
   14 -27.78400  -0.25200   4.10100   0.700   14                                
   15 -27.65500  -2.74000   4.58400   0.700   15                                
   16 -29.67500   1.06200   3.90300   0.700   16                                
   17 -25.32400  -6.48500   4.81700   0.700   17                                
   18 -26.81700  -3.95700   5.17800   0.700   18                                
   19 -29.21700  -0.07700   4.78100   0.700   19                                
   20 -30.81600   1.78100   4.42200   0.700   20                                
   21 -24.90300  -7.48500   4.19200   0.700   21