cluster     1   number of spheres in cluster    21
    1  -2.06400   7.75500  14.93900   0.700    1                                
    2  -0.33600   8.09500  13.08900   0.700    2                                
    3  -3.78800   2.95700  14.91300   0.700    3                                
    4  -5.99900   3.91200  14.96800   0.700    4                                
    5  -1.32900   8.70300  15.75900   0.700    5                                
    6   0.37800   9.03000  13.92100   0.700    6                                
    7  -4.22500   1.84500  15.62100   0.700    7                                
    8  -6.47700   2.80400  15.68000   0.700    8                                
    9  -2.27800   6.55900  12.82200   0.700    9                                
   10  -1.56400   7.46100  13.60900   0.700   10                                
   11  -4.66000   4.00100  14.57700   0.700   11                                
   12  -0.10900   9.34300  15.25300   0.700   12                                
   13  -5.61300   1.75600  16.01800   0.700   13                                
   14  -4.10000   5.19800  13.78600   0.700   14                                
   15  -5.62100  -1.16800  16.16000   0.700   15                                
   16  -2.71200   5.29600  13.36900   0.700   16                                
   17  -4.91400   6.11800  13.50100   0.700   17                                
   18  -7.51300   0.48800  17.12200   0.700   18                                
   19  -5.37800   0.55500  18.21200   0.700   19                                
   20   0.57400  10.23500  16.03900   0.700   20                                
   21  -6.08300   0.27400  16.93100   0.700   21