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A132348 Lengths of the 3x+1 trajectories associated with the record values in A006884. 1
0, 1, 7, 16, 17, 111, 47, 97, 131, 170, 161, 201, 170, 184, 255, 307, 160, 334, 231, 247, 162, 183, 406, 441, 242, 439, 328, 367, 370, 427, 430, 399, 363, 322, 573, 400, 483, 576, 606, 483, 572, 438, 475, 592, 770, 726, 543, 836, 555, 770, 871, 796, 1109, 755 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

REFERENCES

R. B. Banks, Slicing Pizzas, Racing Turtles and Further Adventures in Applied Mathematics, Princeton Univ. Press, 1999. See p. 96.

B. Hayes, Computer Recreations: On the ups and downs of hailstone numbers, Scientific American, 250 (No. 1, 1984), pp. 10-16.

LINKS

Table of n, a(n) for n=1..54.

CROSSREFS

Sequence in context: A101681 A067776 A193688 * A177763 A101073 A026226

Adjacent sequences:  A132345 A132346 A132347 * A132349 A132350 A132351

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Nov 10 2007

EXTENSIONS

Extended by T. D. Noe, Apr 27 2010

STATUS

approved

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Last modified September 24 22:31 EDT 2017. Contains 292441 sequences.