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

 

Logo

Annual Appeal: Today, Nov 11 2014, is the 4th anniversary of the launch of the new OEIS web site. 70,000 sequences have been added in these four years, all edited by volunteers. Please make a donation (tax deductible in the US) to help keep the OEIS running.

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A125157 The k-sequence associated with A125153. 1
1, 2, 3, 4, 5, 8, 11, 6, 9, 12, 15, 7, 18, 10, 13, 24, 16, 46, 19, 30, 41, 14, 52, 44, 17, 55, 47, 20, 58, 50, 23, 61, 34, 72, 45, 64, 37, 56, 29, 48, 21, 40, 59, 32, 51, 70, 43, 62, 35 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

A permutation of the positive integers.

REFERENCES

Clark Kimberling, Interspersions and fractal sequences associated with fractions (c^j)/(d^k), Journal of Integer Sequences 10 (2007, Article 07.5.1) 1-8.

LINKS

Table of n, a(n) for n=1..49.

FORMULA

This sequence k(m) is associated with the array T(3,2,1) at A124153 as follows: row m consists of numbers of the form Floor[(3^p)/(2^k)] for k=k(m).

EXAMPLE

The pairs (j,k) for the first six rows are

(1,1), (2,2), (3,3), (4,4), (5,5), (7,8).

First term in row m is Floor[(3^j(m))/(2^k(m))],

so for m=1,2,3, the first terms are

1=[(3^1)/(2^1)], 2=[(3^2)/(2^2)], 3=[(3^3)/(2^3)].

CROSSREFS

Cf. A125153.

Sequence in context: A222297 A211981 A019997 * A093327 A186041 A181341

Adjacent sequences:  A125154 A125155 A125156 * A125158 A125159 A125160

KEYWORD

nonn

AUTHOR

Clark Kimberling, Nov 21 2006

STATUS

approved

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

Content is available under The OEIS End-User License Agreement .

Last modified December 21 07:47 EST 2014. Contains 252297 sequences.