A161021 - OEIS

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A161021

Collatz (or 3x+1) trajectory starting at 703.

703, 2110, 1055, 3166, 1583, 4750, 2375, 7126, 3563, 10690, 5345, 16036, 8018, 4009, 12028, 6014, 3007, 9022, 4511, 13534, 6767, 20302, 10151, 30454, 15227, 45682, 22841, 68524, 34262, 17131, 51394, 25697, 77092, 38546, 19273, 57820, 28910 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`0,1`
	COMMENTS	`703 = A060412(5); a(A006577(703)) = a(170) = 1;` `a(n) = A008884(n-59) for n with 162 <= n <= 170;` `a(n) = A161022(n+53) for n with 155 <= n <= 170;` `a(n) = A161023(n+153) for n with 144 <= n <= 170.`
	LINKS	`R. Zumkeller, Table of n, a(n) for n = 0..170` `Index entries for sequences related to 3x+1 (or Collatz) problem`
	MATHEMATICA	`NestList[If[EvenQ[#], #/2, 3#+1]&, 703, 40] (* Harvey P. Dale, Nov 27 2011 *)`
	CROSSREFS	`Sequence in context: A214486 A045146 A083735 * A283521 A334010 A257721` `Adjacent sequences: A161018 A161019 A161020 * A161022 A161023 A161024`
	KEYWORD	`nonn`
	AUTHOR	`Reinhard Zumkeller, Jun 03 2009`
	EXTENSIONS	`Edited by N. J. A. Sloane, Jul 27 2019`
	STATUS	`approved`

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Last modified June 29 17:41 EDT 2022. Contains 354913 sequences. (Running on oeis4.)