Values of X[80]:
  0  0.768056
  1  0.568948
  2  0.57965
  3  0.584413
  4  0.594834
  5  0.602271
  6  0.607892
  7  0.611322
  8  0.613144
  9  0.613646
  10  0.613168
  11  0.611947
  12  0.610184
  13  0.608026
  14  0.605588
  15  0.602958
  16  0.600201
  17  0.597369
  18  0.594499
  19  0.591622
  20  0.588759