Hailstone sequence: Difference between revisions

(Add Terence Tao presentation.)
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I use this version to do the validation:
<lang Mathematica>Hailstone[n_] :=
NestWhileList[WhichIf[Mod[#, 2] == 0, #/2, True, ( 3*# + 1) ] &, n, # != 1 &];