A225452 Digits of the 10-adic integer (1/9)^(1/7).

9, 6, 9, 8, 0, 8, 1, 2, 6, 9, 7, 5, 6, 7, 4, 1, 6, 7, 5, 2, 5, 5, 3, 4, 3, 0, 2, 7, 4, 2, 2, 5, 1, 5, 5, 9, 1, 5, 8, 6, 8, 0, 1, 6, 8, 2, 2, 1, 5, 7, 9, 3, 0, 3, 1, 3, 3, 9, 9, 8, 2, 9, 0, 1, 1, 3, 3, 9, 2, 7, 8, 6, 6, 4, 0, 2, 6, 6, 2, 6, 0, 5, 4, 5, 4, 7, 6, 2, 3, 2, 6, 4, 4, 6, 2, 2, 6, 6, 2, 6

Offset

0,1

Comments

This is the 10's complement of A225443.

Links

Seiichi Manyama, Table of n, a(n) for n = 0..10000

Example

       9^7 == -1      (mod 10).
      69^7 == -11     (mod 10^2).
     969^7 == -111    (mod 10^3).
    8969^7 == -1111   (mod 10^4).
    8969^7 == -11111  (mod 10^5).
  808969^7 == -111111 (mod 10^6).

Prog

(PARI) n=0; for(i=1, 100, m=(8*(10^i-1)/9)+1; for(x=0, 9, if(((n+(x*10^(i-1)))^7)%(10^i)==m, n=n+(x*10^(i-1)); print1(x", "); break)))
(PARI) Vecrev(digits(truncate(-(-1/9+O(10^100))^(1/7)))) \\ Seiichi Manyama, Aug 04 2019
(PARI) N=100; Vecrev(digits(lift(chinese(Mod((1/9+O(2^N))^(1/7), 2^N), Mod((1/9+O(5^N))^(1/7), 5^N)))), N) \\ Seiichi Manyama, Aug 04 2019

Crossrefs

Digits of 10-adic integers:

A225443 ((-1/9)^(1/7));

A225446 ( 9^(1/7));

A225449 ( (-9)^(1/7)).

Sequence in context: A344778 A010545 A197506 * A230161 A345288 A019790

Adjacent sequences: A225449 A225450 A225451 * A225453 A225454 A225455

Keyword

nonn,base

Author

Aswini Vaidyanathan, May 11 2013

Status

approved