1              -0.00025088               0.00123099
           2               0.00064146               0.00194145
           4              -0.00109760               0.00286125
           8              -0.00157370               0.00559927
          16               0.00284521               0.01070210
          32               0.01717676               0.01781696
          64               0.02056364               0.03523863
         128              -0.02726618               0.04318236
         256              -0.08918512               0.14324446
         512              -0.18963135               0.31690358
        1024              -0.53340869               0.66080986
        2048              -1.26869375               1.23977519
        4096              -2.95903603               2.48054052