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A033974 Trajectory of 1 under map n->37n+1 if n odd, n->n/2 if n even 1
1, 38, 19, 704, 352, 176, 88, 44, 22, 11, 408, 204, 102, 51, 1888, 944, 472, 236, 118, 59, 2184, 1092, 546, 273, 10102, 5051, 186888, 93444, 46722, 23361, 864358, 432179, 15990624, 7995312, 3997656, 1998828 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Harvey P. Dale, Table of n, a(n) for n = 0..1000

MATHEMATICA

NestList[If[EvenQ[#], #/2, 37#+1]&, 1, 40] (* Harvey P. Dale, May 31 2019 *)

CROSSREFS

Sequence in context: A277642 A160147 A033358 * A143721 A333850 A070725

Adjacent sequences:  A033971 A033972 A033973 * A033975 A033976 A033977

KEYWORD

nonn

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified May 16 02:35 EDT 2022. Contains 353687 sequences. (Running on oeis4.)