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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A225444 10-adic integer x such that x^7 == 3 mod 10^n for all n. 1
7, 2, 6, 1, 5, 9, 6, 2, 8, 3, 7, 8, 8, 7, 9, 3, 6, 0, 9, 3, 4, 8, 1, 3, 8, 2, 7, 6, 2, 0, 5, 7, 4, 8, 4, 1, 7, 6, 4, 5, 3, 5, 1, 1, 5, 1, 0, 9, 6, 1, 7, 8, 6, 2, 0, 6, 2, 7, 7, 9, 5, 1, 7, 1, 3, 6, 0, 6, 5, 4, 8, 9, 1, 5, 3, 5, 9, 7, 2, 9, 3, 1, 4, 8, 3, 5, 8, 7, 3, 1, 0, 5, 5, 9, 0, 0, 7, 0, 8, 6 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..100.

EXAMPLE

7^7 == 3 (mod 10).

27^7 == 3 (mod 100).

627^7 == 3 (mod 1000).

1627^7 == 3 (mod 10000).

51627^7 == 3 (mod 100000).

951627^7 == 3 (mod 1000000).

PROG

(PARI) n=0; for(i=1, 100, m=3; for(x=0, 9, if(((n+(x*10^(i-1)))^7)%(10^i)==m, n=n+(x*10^(i-1)); print1(x", "); break)))

CROSSREFS

Sequence in context: A248285 A117029 A128475 * A175408 A019934 A295874

Adjacent sequences:  A225441 A225442 A225443 * A225445 A225446 A225447

KEYWORD

nonn,base

AUTHOR

Aswini Vaidyanathan, May 11 2013

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 23 09:35 EDT 2019. Contains 322385 sequences. (Running on oeis4.)