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A003620 Number of iterations until 3n reaches 153 under x goes to sum of cubes of digits map.
(Formerly M2829)
+0
1
3, 10, 4, 5, 10, 2, 5, 3, 2, 3, 6, 6, 6, 3, 5, 6, 10, 5, 5, 10, 6, 6, 6, 2, 5, 8, 2, 6, 8, 4, 6, 6, 4, 5, 10, 2, 4, 7, 11, 5, 7, 9, 10, 7, 1, 6, 7, 11, 7, 10, 0, 6, 8, 9, 6, 4, 11, 7, 13, 2, 6, 4, 4, 10, 8, 4, 5, 3, 2, 5, 7, 9, 10, 4, 8, 8, 7, 5, 10, 3 (list; graph; listen)
OFFSET

1,1

REFERENCES

J. Roberts, Lure of the Integers, Math. Assoc. America, 1992, p. 13.

CROSSREFS

Sequence in context: A010708 A072988 A131814 this_sequence A111229 A100984 A045985

Adjacent sequences: A003617 A003618 A003619 this_sequence A003621 A003622 A003623

KEYWORD

nonn,base

AUTHOR

njas, Mira Bernstein

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


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