2: 0.502271353194
    3: 0.661796013624
    4: 0.678633909137
    7: 0.761270657441
   12: 0.771608191304
   19: 0.781297653383
   27: 0.782305435548
   34: 0.784271495056
   35: 0.788128326370
   36: 0.793886495203
   37: 0.797305288252

2 3 4 7 12 19 27 34 35 36 37

Fit of radii by a power law r = a0*n^a1:
  a0 = 0.73275  a1 = -0.45783