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

 

Logo

Please make a donation to keep the OEIS running. We are now in our 56th year. In the past year we added 10000 new sequences and reached almost 9000 citations (which often say "discovered thanks to the OEIS").
Other ways to donate

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 A125153 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: A211981 A019997 A263875 * A093327 A186041 A322531

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 | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified December 2 22:42 EST 2020. Contains 338897 sequences. (Running on oeis4.)