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A161021 Collatz (or 3x+1) trajectory starting at 703. 8

%I #15 Oct 13 2022 14:31:05

%S 703,2110,1055,3166,1583,4750,2375,7126,3563,10690,5345,16036,8018,

%T 4009,12028,6014,3007,9022,4511,13534,6767,20302,10151,30454,15227,

%U 45682,22841,68524,34262,17131,51394,25697,77092,38546,19273,57820,28910

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

%C 703 = A060412(5); a(A006577(703)) = a(170) = 1;

%C a(n) = A008884(n-59) for n with 162 <= n <= 170;

%C a(n) = A161022(n+53) for n with 155 <= n <= 170;

%C a(n) = A161023(n+153) for n with 144 <= n <= 170.

%H R. Zumkeller, <a href="/A161021/b161021.txt">Table of n, a(n) for n = 0..170</a>

%H <a href="/index/3#3x1">Index entries for sequences related to 3x+1 (or Collatz) problem</a>

%H <a href="/index/Rec#order_03">Index entries for linear recurrences with constant coefficients</a>, signature (0,0,1).

%t NestList[If[EvenQ[#],#/2,3#+1]&,703,40] (* _Harvey P. Dale_, Nov 27 2011 *)

%K nonn,easy

%O 0,1

%A _Reinhard Zumkeller_, Jun 03 2009

%E Edited by _N. J. A. Sloane_, Jul 27 2019

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Last modified April 24 09:38 EDT 2024. Contains 371935 sequences. (Running on oeis4.)