If you go to nrichtwilgo
RT 90 REPEAT 3 [REPEAT 360 [FD 1 RT 1] PU FD 125 PD] PU RT 139 FD
245 RT 41 PD REPEAT 2 [REPEAT 360 [FD 1 RT 1] PU FD 130 PD]
will approximately produce the desired image. Perhaps
you can produce a 'better' algorithm to display this? If so, let us
For trademarking reasons we are unable to display this image, so
why not try this for yourself?