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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A325899 Digits of the 2-adic integer 9^(1/5). 4
1, 0, 0, 1, 0, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0, 1, 0, 1, 0, 0, 1, 1, 1, 0, 1, 1, 1, 1, 1, 0, 1, 1, 0, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 1, 1, 1, 0, 1, 0, 0, 1, 1, 0, 1, 1, 1, 0, 0, 1 (list; graph; refs; listen; history; text; internal format)
OFFSET

0

LINKS

Table of n, a(n) for n=0..87.

Wikipedia, p-adic number

FORMULA

a(n) = (A325895(n+1) - A325895(n))/2^n.

a(n) = 0 if A325895(n)^5 - 9 is divisible by 2^(n+1), otherwise a(n) = 1.

EXAMPLE

Equals ...1011100101001100111111110111110111101001.

PROG

(PARI) a(n) = lift(sqrtn(9+O(2^(n+1)), 5))\2^n

CROSSREFS

Cf. A325895.

Digits of p-adic fifth-power roots:

A325896 (2-adic, 3^(1/5));

A325897 (2-adic, 5^(1/5));

A325898 (2-adic, 7^(1/5));

this sequence (2-adic, 9^(1/5));

A322169 (5-adic, 7^(1/5));

A309445 (7-adic, 2^(1/5));

A309446 (7-adic, 3^(1/5));

A309447 (7-adic, 4^(1/5));

A309448 (7-adic, 5^(1/5));

A309449 (7-adic, 6^(1/5)).

Sequence in context: A104105 A295889 A143221 * A126999 A306862 A214293

Adjacent sequences:  A325896 A325897 A325898 * A325900 A325901 A325902

KEYWORD

nonn,base

AUTHOR

Jianing Song, Sep 07 2019

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 February 18 15:30 EST 2020. Contains 332019 sequences. (Running on oeis4.)