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A033967
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Trajectory of 1 under map n->21n+1 if n odd, n->n/2 if n even
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1
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1, 22, 11, 232, 116, 58, 29, 610, 305, 6406, 3203, 67264, 33632, 16816, 8408, 4204, 2102, 1051, 22072, 11036, 5518, 2759, 57940, 28970, 14485, 304186, 152093, 3193954, 1596977, 33536518, 16768259
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OFFSET
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0,2
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LINKS
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MATHEMATICA
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NestList[If[OddQ[#], 21#+1, #/2]&, 1, 30] (* Harvey P. Dale, Aug 24 2012 *)
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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