Values of X(64)
   0        0.410479
   1        0.517868
   2        0.429061
   3        0.414562
   4        0.402406
   5        0.395849
   6        0.392393
   7        0.390489
   8        0.389793
   9        0.389786
  10        0.390277
  11         0.39109
  12        0.392127
  13        0.393317
  14        0.394613
  15        0.395981
  16        0.397398
  17        0.398846
  18        0.400313
  19        0.401789
  20        0.403268