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A161023 Collatz trajectory starting at 35655. 6
35655, 106966, 53483, 160450, 80225, 240676, 120338, 60169, 180508, 90254, 45127, 135382, 67691, 203074, 101537, 304612, 152306, 76153, 228460, 114230, 57115, 171346, 85673, 257020, 128510, 64255, 192766, 96383, 289150, 144575, 433726 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

COMMENTS

35655 = A060412(7); a(A006577(35655)) = a(323) = 1.

a(n) = A161021(n-153) for n with 297 <= n <= 323;

a(n) = A161022(n-100) for n with 308 <= n <= 323.

At step 321 becomes periodic: 4 2 1 4 2 1 4 2 1 ... - N. J. A. Sloane, Jul 27 2019

LINKS

R. Zumkeller, Table of n, a(n) for n = 0..323

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

Index entries for linear recurrences with constant coefficients, signature (0,0,1).

MATHEMATICA

NestWhileList[If[EvenQ[#], #/2, 3#+1]&, 35655, #>1&] (* Harvey P. Dale, Apr 28 2016 *)

CROSSREFS

Cf. A008884.

Sequence in context: A204666 A163680 A172712 * A252920 A156405 A065611

Adjacent sequences: A161020 A161021 A161022 * A161024 A161025 A161026

KEYWORD

nonn,look,easy

AUTHOR

Reinhard Zumkeller, Jun 03 2009

EXTENSIONS

Edited by N. J. A. Sloane, Jul 27 2019

STATUS

approved

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Last modified January 29 00:02 EST 2023. Contains 359905 sequences. (Running on oeis4.)