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A033479 3x+1 sequence beginning at 9. 4
9, 28, 14, 7, 22, 11, 34, 17, 52, 26, 13, 40, 20, 10, 5, 16, 8, 4, 2, 1, 4, 2, 1, 4, 2, 1, 4, 2, 1, 4, 2, 1, 4, 2, 1, 4, 2, 1, 4, 2, 1, 4, 2, 1, 4, 2, 1, 4, 2, 1, 4, 2, 1, 4, 2, 1, 4, 2, 1, 4, 2, 1, 4, 2, 1, 4, 2, 1, 4, 2, 1, 4, 2, 1, 4, 2, 1, 4, 2, 1, 4, 2, 1, 4, 2, 1, 4, 2, 1, 4, 2, 1 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

Table of n, a(n) for n=0..91.

Index entries for sequences related to 3x+1 (or Collatz) problem

MATHEMATICA

NestList[If[EvenQ[#], #/2, 3#+1]&, 9, 100] (* Harvey P. Dale, Dec 16 2012 *)

CROSSREFS

Sequence in context: A075539 A225300 A053825 * A254139 A034116 A031454

Adjacent sequences:  A033476 A033477 A033478 * A033480 A033481 A033482

KEYWORD

nonn

AUTHOR

Jeff Burch

STATUS

approved

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Last modified May 25 11:15 EDT 2019. Contains 323539 sequences. (Running on oeis4.)