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A033970 Trajectory of 1 under map n->27n+1 if n odd, n->n/2 if n even 0
1, 28, 14, 7, 190, 95, 2566, 1283, 34642, 17321, 467668, 233834, 116917, 3156760, 1578380, 789190, 394595, 10654066, 5327033, 143829892, 71914946, 35957473, 970851772, 485425886, 242712943, 6553249462 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..25.

MATHEMATICA

NestList[If[EvenQ[#], #/2, 27#+1]&, 1, 30] (* Harvey P. Dale, Oct 17 2014 *)

CROSSREFS

Sequence in context: A070659 A040760 A179066 * A033348 A040759 A212279

Adjacent sequences:  A033967 A033968 A033969 * A033971 A033972 A033973

KEYWORD

nonn

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified October 22 06:54 EDT 2019. Contains 328315 sequences. (Running on oeis4.)