OFFSET
0,1
COMMENTS
This is the 10's complement of A225442.
LINKS
Seiichi Manyama, Table of n, a(n) for n = 0..10000
EXAMPLE
3^7 == -3 (mod 10).
63^7 == -33 (mod 10^2).
563^7 == -333 (mod 10^3).
2563^7 == -3333 (mod 10^4).
42563^7 == -33333 (mod 10^5).
742563^7 == -333333 (mod 10^6).
PROG
(PARI) n=0; for(i=1, 100, m=(2*(10^i-1)/3)+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) N=100; Vecrev(digits(lift(chinese(Mod((1/3+O(2^N))^(1/7), 2^N), Mod((1/3+O(5^N))^(1/7), 5^N)))), N) \\ Seiichi Manyama, Aug 06 2019
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Aswini Vaidyanathan, May 11 2013
STATUS
approved