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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A293327 Least integer k such that k/2^n > sqrt(1/3). 3
0, 1, 2, 4, 9, 18, 36, 73, 147, 295, 591, 1182, 2364, 4729, 9459, 18918, 37837, 75674, 151348, 302697, 605395, 1210791, 2421582, 4843165, 9686330, 19372660, 38745320, 77490641, 154981282, 309962565, 619925131, 1239850262, 2479700524, 4959401049, 9918802098 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Clark Kimberling, Table of n, a(n) for n = 0..1000

FORMULA

a(n) = ceiling(r*2^n), where r = sqrt(1/3).

a(n) = A293328(n) - 1.

MATHEMATICA

z = 120; r = Sqrt[1/3];

Table[Floor[r*2^n], {n, 0, z}];   (* A293327 *)

Table[Ceiling[r*2^n], {n, 0, z}]; (* A293328 *)

Table[Round[r*2^n], {n, 0, z}];   (* A293329 *)

CROSSREFS

Cf. A002194, A094386, A293328, A293329.

Sequence in context: A033138 A155803 A293352 * A282909 A282825 A282956

Adjacent sequences:  A293324 A293325 A293326 * A293328 A293329 A293330

KEYWORD

nonn,easy

AUTHOR

Clark Kimberling, Oct 09 2017

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 April 20 09:59 EDT 2019. Contains 322309 sequences. (Running on oeis4.)