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 A161022 Collatz (or 3x+1) trajectory starting at 10087. 6
 10087, 30262, 15131, 45394, 22697, 68092, 34046, 17023, 51070, 25535, 76606, 38303, 114910, 57455, 172366, 86183, 258550, 129275, 387826, 193913, 581740, 290870, 145435, 436306, 218153, 654460, 327230, 163615, 490846, 245423, 736270 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,1 COMMENTS 10087 = A060412(6); a(A006577(10087)) = a(223) = 1; a(n)=A161021(n-53)=A161023(n+100) for n with 208<=n<=228. At step 221 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..223 CROSSREFS Sequence in context: A230033 A252052 A083965 * A293686 A267057 A213182 Adjacent sequences:  A161019 A161020 A161021 * A161023 A161024 A161025 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 April 17 18:15 EDT 2021. Contains 343070 sequences. (Running on oeis4.)