Birthday Paradox

This amount of code just print out the probability that at least two persons in a room have the same birthday. This was code in Python.

p=1.0
for x in range(1,42):
  if x == 1:
    print "   N P(%)"
  print "  %2d %2.2f%%" % (x,100*(1-p))
  p = (365-x)*p/365

The output is:

   N P(%)
   1 0.00%
   2 0.27%
   3 0.82%
   4 1.64%
   5 2.71%
   6 4.05%
   7 5.62%
   8 7.43%
   9 9.46%
  10 11.69%
  11 14.11%
  12 16.70%
  13 19.44%
  14 22.31%
  15 25.29%
  16 28.36%
  17 31.50%
  18 34.69%
  19 37.91%
  20 41.14%
  21 44.37%
  22 47.57%
  23 50.73%
  24 53.83%
  25 56.87%
  26 59.82%
  27 62.69%
  28 65.45%
  29 68.10%
  30 70.63%
  31 73.05%
  32 75.33%
  33 77.50%
  34 79.53%
  35 81.44%
  36 83.22%
  37 84.87%
  38 86.41%
  39 87.82%
  40 89.12%
  41 90.32%