cluster     1   number of spheres in cluster    15
    1 -27.69800 -15.44700  25.09200   0.700    1                                
    2 -25.54000 -16.54200  24.39300   0.700    2                                
    3 -21.80900 -11.25500  24.43100   0.700    3                                
    4 -20.45700 -10.98400  24.67800   0.700    4                                
    5 -21.98200 -12.47700  26.48100   0.700    5                                
    6 -24.27700 -13.80100  25.04800   0.700    6                                
    7 -22.57300 -11.99700  25.33400   0.700    7                                
    8 -19.87400 -11.48000  25.83800   0.700    8                                
    9 -20.64100 -12.22800  26.73300   0.700    9                                
   10 -26.17800 -15.40000  25.21700   0.700   10                                
   11 -24.04000 -12.29100  25.08500   0.700   11                                
   12 -25.70300 -14.07400  24.75800   0.700   12                                
   13 -18.56600 -11.23300  26.08600   0.700   13                                
   14 -20.10600 -12.72900  27.87700   0.700   14                                
   15 -24.42300 -11.77300  23.82100   0.700   15