OFFSET
0,1
LINKS
Seiichi Manyama, Table of n, a(n) for n = 0..10000
EXAMPLE
3^7 == 7 (mod 10).
33^7 == 77 (mod 10^2).
633^7 == 777 (mod 10^3).
5633^7 == 7777 (mod 10^4).
95633^7 == 77777 (mod 10^5).
895633^7 == 777777 (mod 10^6).
PROG
(PARI) n=0; for(i=1, 100, m=7*(10^i-1)/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) N=100; Vecrev(digits(lift(chinese(Mod((-7/9+O(2^N))^(1/7), 2^N), Mod((-7/9+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