In[114]:=

orbite/@ r120//Union

Out[114]=

{{{1, 4, 7, 6, 6, 1, 4, 7, 13, 4, 7, 12, 1, 4, 1, 6, 12, 1, 4, 19}, {4, 1, 12, 6, 1, 4, 1, 12, ... 12, 3, 3, 1, 5, 12, 3, 4, 17}, {4, 3, 12, 5, 1, 3, 3, 12, 5, 4, 15, 5, 4, 3, 6, 6, 5, 4, 3, 17}}}

Created by Mathematica  (January 22, 2004)