2: 0.503179917313 3: 0.643568348049 4: 0.692960944306 7: 0.770012848460 19: 0.796479035795 37: 0.804223450026 55: 0.807528162139 74: 0.812379020644 82: 0.813507124491 83: 0.817994223694 84: 0.819345318069 115: 0.819875129586 116: 0.821163941818 117: 0.822355202246 120: 0.822428395169 2 3 4 7 19 37 55 74 82 83 84 115 116 117 120 Fit of radii by a power law r = a0*n^a1: a0 = 0.77670 a1 = -0.46922