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A179624 Collatz trajectory starting at 230631. 1
230631, 691894, 345947, 1037842, 518921, 1556764, 778382, 389191, 1167574, 583787, 1751362, 875681, 2627044, 1313522, 656761, 1970284, 985142, 492571, 1477714, 738857, 2216572, 1108286, 554143, 1662430, 831215, 2493646, 1246823 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

The total stopping time of 230631 is 442. - Michael De Vlieger, Oct 15 2018

LINKS

Michael De Vlieger, Table of n, a(n) for n = 1..443

Eric Weisstein's World of Mathematics, Collatz Problem

Wikipedia, Collatz conjecture

MATHEMATICA

Off[Set::"setraw"]; f[n_]:=If[EvenQ[n], n=n/2, n=n*3+1]; Do[a=q; lst={a}; Do[a=f[a]; AppendTo[lst, a]; If[a==1, Break[]], {n, 10!}]; If[Length[lst]>400, Print[lst, Length[lst]]], {q, 5*8!, 9!}]

NestList[If[EvenQ[#], #/2, 3#+1]&, 230631, 30] (* Harvey P. Dale, Jun 26 2011 *)

CROSSREFS

Cf. A161021, A179623.

Sequence in context: A324636 A015319 A270515 * A050998 A237462 A244349

Adjacent sequences:  A179621 A179622 A179623 * A179625 A179626 A179627

KEYWORD

nonn,fini,full

AUTHOR

Vladimir Joseph Stephan Orlovsky, Jul 20 2010

STATUS

approved

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Last modified May 25 10:05 EDT 2022. Contains 354066 sequences. (Running on oeis4.)