A225446 Digits of the 10-adic integer 9^(1/7).

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

Offset

0,1

Links

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

Example

       9^7 == 9 (mod 10).
      29^7 == 9 (mod 10^2).
     129^7 == 9 (mod 10^3).
    7129^7 == 9 (mod 10^4).
   47129^7 == 9 (mod 10^5).
  947129^7 == 9 (mod 10^6).

Prog

(PARI) n=0; for(i=1, 100, m=9; 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(-(-9+O(10^100))^(1/7)))) \\ Seiichi Manyama, Aug 04 2019
(PARI) N=100; Vecrev(digits(lift(chinese(Mod((9+O(2^N))^(1/7), 2^N), Mod((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));

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

A225452 ( (1/9)^(1/7)).

Sequence in context: A118322 A199507 A230156 * A277559 A154993 A197488

Adjacent sequences: A225443 A225444 A225445 * A225447 A225448 A225449

Keyword

nonn,base

Author

Aswini Vaidyanathan, May 11 2013

Status

approved