login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A033967 Trajectory of 1 under map n->21n+1 if n odd, n->n/2 if n even 1
1, 22, 11, 232, 116, 58, 29, 610, 305, 6406, 3203, 67264, 33632, 16816, 8408, 4204, 2102, 1051, 22072, 11036, 5518, 2759, 57940, 28970, 14485, 304186, 152093, 3193954, 1596977, 33536518, 16768259 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..30.

MATHEMATICA

NestList[If[OddQ[#], 21#+1, #/2]&, 1, 30] (* Harvey P. Dale, Aug 24 2012 *)

CROSSREFS

Sequence in context: A102612 A040465 A108732 * A262244 A140872 A133724

Adjacent sequences:  A033964 A033965 A033966 * A033968 A033969 A033970

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 August 24 16:21 EDT 2019. Contains 326295 sequences. (Running on oeis4.)