login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A037107 Trajectory of 3 under map n->19n+1 if n odd, n->n/2 if n even 0
3, 58, 29, 552, 276, 138, 69, 1312, 656, 328, 164, 82, 41, 780, 390, 195, 3706, 1853, 35208, 17604, 8802, 4401, 83620, 41810, 20905, 397196, 198598, 99299, 1886682, 943341, 17923480, 8961740, 4480870 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

Table of n, a(n) for n=0..32.

FORMULA

a(n) = A033966(n+9). - R. J. Mathar, Nov 21 2014

MATHEMATICA

NestList[If[EvenQ[#], #/2, 19#+1]&, 3, 40] (* Harvey P. Dale, Oct 31 2017 *)

CROSSREFS

Sequence in context: A134723 A133060 A198915 * A335293 A041735 A156487

Adjacent sequences:  A037104 A037105 A037106 * A037108 A037109 A037110

KEYWORD

nonn

AUTHOR

N. J. A. Sloane.

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified October 23 11:52 EDT 2021. Contains 348212 sequences. (Running on oeis4.)