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A225462
10-adic integer x such that x^9 = 7/9.
1
3, 6, 6, 5, 1, 9, 1, 8, 2, 1, 3, 5, 2, 4, 8, 9, 7, 4, 8, 2, 8, 2, 7, 5, 9, 1, 8, 8, 5, 1, 2, 9, 3, 4, 6, 7, 8, 5, 9, 5, 7, 0, 3, 8, 9, 3, 1, 6, 4, 0, 7, 5, 8, 7, 0, 4, 5, 7, 0, 8, 3, 1, 5, 1, 2, 8, 3, 3, 4, 8, 7, 3, 2, 5, 3, 9, 0, 9, 4, 6, 1, 5, 5, 8, 5, 5, 8, 3, 3, 3, 4, 5, 7, 5, 0, 9, 9, 8, 1, 8
OFFSET
0,1
COMMENTS
This is the 10's complement of A225453.
LINKS
EXAMPLE
3^9 == -7 (mod 10).
63^9 == -77 (mod 10^2).
663^9 == -777 (mod 10^3).
5663^9 == -7777 (mod 10^4).
15663^9 == -77777 (mod 10^5).
915663^9 == -777777 (mod 10^6).
PROG
(PARI) n=0; for(i=1, 100, m=(2*(10^i-1)/9)+1; for(x=0, 9, if(((n+(x*10^(i-1)))^9)%(10^i)==m, n=n+(x*10^(i-1)); print1(x", "); break)))
(PARI) N=100; Vecrev(digits(lift(chinese(Mod((7/9+O(2^N))^(1/9), 2^N), Mod((7/9+O(5^N))^(1/9), 5^N)))), N) \\ Seiichi Manyama, Aug 07 2019
CROSSREFS
Cf. A225453.
Sequence in context: A339021 A197263 A074785 * A179949 A187601 A113737
KEYWORD
nonn,base
AUTHOR
Aswini Vaidyanathan, May 11 2013
STATUS
approved