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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A183208 Iterates of f(x)=floor((3x-1)/2) from x=6. 1
6, 8, 11, 16, 23, 34, 50, 74, 110, 164, 245, 367, 550, 824, 1235, 1852, 2777, 4165, 6247, 9370, 14054, 21080, 31619, 47428, 71141, 106711, 160066, 240098, 360146, 540218, 810326, 1215488, 1823231, 2734846, 4102268, 6153401, 9230101, 13845151 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..38.

FORMULA

Iterates of f(x)=floor((3x-1)/2) from x=6.

EXAMPLE

a(1)=6; a(2)=f(a(1))=8; a(3)=f(a(2))=11.

MATHEMATICA

x=6; Join[{x}, Table[x=Floor[(3*x-1)/2], {n, 0, 36}]]

f[x_]:=Floor[(3x-1)/2]; NestList[f, 6, 37]

PROG

(PARI) v=vector(100); v[1]=6; for(n=2, #v, v[n]=floor((3*v[n-1]-1)/2)); v

CROSSREFS

Cf. A183207, A178931.

Sequence in context: A167499 A020716 A020937 * A048586 A080824 A100602

Adjacent sequences:  A183205 A183206 A183207 * A183209 A183210 A183211

KEYWORD

nonn

AUTHOR

Clark Kimberling, Dec 30 2010

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 14 07:00 EDT 2019. Contains 327995 sequences. (Running on oeis4.)