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A006513 Image of n after 2k iterates of `(3x+1)/2' map (k large).
(Formerly M0189)
+0
5
1, 2, 2, 1, 1, 1, 2, 2, 2, 2, 1, 2, 2, 1, 1, 1, 2, 1, 1, 1, 1, 2, 2, 1, 1, 1, 1, 2, 2, 2, 2, 2, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 1, 2, 1, 2 (list; graph; listen)
OFFSET

1,2

REFERENCES

R. K. Guy, Unsolved Problems in Number Theory, E16.

LINKS

J. C. Lagarias, The 3x+1 problem and its generalizations, Amer. Math. Monthly, 92 (1985), 3-23.

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

CROSSREFS

Sequence in context: A039998 A000999 A025451 this_sequence A105224 A047070 A071127

Adjacent sequences: A006510 A006511 A006512 this_sequence A006514 A006515 A006516

KEYWORD

nonn

AUTHOR

njas

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Last modified July 26 13:41 EDT 2008. Contains 142293 sequences.


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