1              -0.00892547               0.02181130
           2               0.08746960               0.04158539
           4               0.41868789               0.08470819
           8               0.96745429               0.31397412
          16               2.10473455               1.25384513
          32               4.35184991               2.68266846
          64               8.97608326               5.67357875
         128              16.28887520              10.56476953
         256              30.30922929              19.64535814
         512              56.01804315              36.86831270
        1024             106.95523313              70.81614384
        2048             212.19944610             140.45792859