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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A123138 The n-th digit of a(n-1) gives the position of digit n in a(n), a(1)=263514. 0
263514, 513642, 263514, 513642, 263514, 513642, 263514, 513642, 263514, 513642, 263514, 513642, 263514, 513642, 263514, 513642, 263514, 513642, 263514, 513642, 263514, 513642, 263514, 513642, 263514, 513642, 263514, 513642, 263514, 513642 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Sequence is periodic with period 2. - Charles R Greathouse IV, Jul 27 2009

LINKS

Table of n, a(n) for n=1..30.

A. Frank & P. Jacqueroux, International Contest, 2001. Item 29

Index entries for linear recurrences with constant coefficients, signature (0, 1).

FORMULA

a(n)=388578+125064*(-1)^n, with n>=1. - Paolo P. Lava, Aug 04 2009

EXAMPLE

Since a(1)=263514, the '2'nd digit of a(2) is 1, the '6'th digit is 2, the '3'rd digit is 3, the '5'th digit 4, the '1'st digit is 5 and the '4'th digit is 6.

MATHEMATICA

LinearRecurrence[{0, 1}, {263514, 513642}, 30] (* Ray Chandler, Aug 25 2015 *)

CROSSREFS

Cf. A123155.

Sequence in context: A253839 A253933 A237778 * A319902 A098188 A095974

Adjacent sequences:  A123135 A123136 A123137 * A123139 A123140 A123141

KEYWORD

nonn,base

AUTHOR

Herman Jamke (hermanjamke(AT)fastmail.fm), Sep 30 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 July 20 16:34 EDT 2019. Contains 325185 sequences. (Running on oeis4.)