5: 0.695057227703
    6: 0.699742410812
    7: 0.758109420731
    8: 0.766868928566
   10: 0.772565778837
   11: 0.794015905604
   12: 0.806084390414
   15: 0.810884472461
   16: 0.816265195197
   17: 0.820069830754
   19: 0.825623556098
   20: 0.827163434919
   21: 0.829038291967
   22: 0.829937734852
   23: 0.835398274496
   25: 0.837507049914
   27: 0.840526473015
   29: 0.842692522166
   31: 0.843632809859
   32: 0.845408589325
   33: 0.846611621173
   34: 0.847031840781
   35: 0.847842694381
   36: 0.848004547109
   37: 0.850128748075
   39: 0.851207886666
   40: 0.851998243278
   41: 0.853369389008
   43: 0.853653014666
   45: 0.854852921826
   46: 0.854958224392
   47: 0.855188117342
   48: 0.855654709430
   49: 0.856059836268
   50: 0.856259291679

5 6 7 8 10 11 12 15 16 17 19 20 21 22 23 25 27 29 31 32 33 34 35 36 37 39 40 41 43 45 46 47 48 49 50

Fit of radii by a power law r = a0*n^a1:
  a0 = 0.73994  a1 = -0.30093