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 A037117 Trajectory of 3 under map n->39n+1 if n odd, n->n/2 if n even 1
 3, 118, 59, 2302, 1151, 44890, 22445, 875356, 437678, 218839, 8534722, 4267361, 166427080, 83213540, 41606770, 20803385, 811332016, 405666008, 202833004, 101416502, 50708251, 1977621790, 988810895 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,1 LINKS Harvey P. Dale, Table of n, a(n) for n = 0..1000 MATHEMATICA NestList[If[EvenQ[#], #/2, 39#+1]&, 3, 40] (* Harvey P. Dale, Dec 27 2020 *) CROSSREFS Sequence in context: A009095 A326995 A155209 * A283883 A173053 A180393 Adjacent sequences:  A037114 A037115 A037116 * A037118 A037119 A037120 KEYWORD nonn AUTHOR STATUS approved

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Last modified December 9 04:45 EST 2021. Contains 349626 sequences. (Running on oeis4.)