1               0.01294698               0.01145192
           2               0.07872735               0.02439098
           4               0.26572277               0.05021094
           8               0.75415387               0.08520486
          16               1.80370025               0.22256944
          32               3.39734599               0.47475474
          64               5.63122526               0.85051447
         128               9.37774059               1.45173538
         256              15.52896661               2.43782346
         512              26.19701954               4.36348966
        1024              45.85221527               7.53724152
        2048              84.24764796              14.16899820
        4096             157.97817888              26.95897944