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A037121 Trajectory of 3 under map n -> 47n+1 if n odd, n->n/2 if n even. 2
3, 142, 71, 3338, 1669, 78444, 39222, 19611, 921718, 460859, 21660374, 10830187, 509018790, 254509395, 11961941566, 5980970783, 281105626802, 140552813401, 6605982229848, 3302991114924, 1651495557462 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

Table of n, a(n) for n=0..20.

MATHEMATICA

NestList[If[EvenQ[#], #/2, 47#+1]&, 3, 30] (* Harvey P. Dale, May 05 2014 *)

CROSSREFS

Sequence in context: A035331 A050819 A255190 * A279923 A195937 A162363

Adjacent sequences:  A037118 A037119 A037120 * A037122 A037123 A037124

KEYWORD

nonn

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified August 20 07:48 EDT 2019. Contains 326143 sequences. (Running on oeis4.)