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A309819
Digits of the 10-adic integer (987654321/(1-10^9))^(1/7).
5
1, 6, 9, 2, 4, 8, 8, 2, 9, 8, 5, 7, 4, 7, 6, 1, 3, 4, 0, 1, 2, 7, 2, 6, 2, 5, 7, 3, 2, 1, 3, 2, 1, 2, 1, 6, 1, 6, 5, 5, 6, 8, 6, 8, 4, 9, 4, 0, 4, 4, 0, 6, 1, 4, 1, 4, 5, 4, 7, 1, 1, 5, 4, 6, 0, 4, 2, 5, 5, 7, 7, 0, 8, 6, 1, 2, 7, 0, 0, 0, 3, 4, 1, 5, 4, 9, 0, 9, 1, 9, 3, 4, 7, 8, 3, 6, 5, 7, 1, 0
OFFSET
0,2
COMMENTS
x = ...612123123752627210431674758928842961.
x^7 = ...987654321987654321987654321987654321.
LINKS
EXAMPLE
1^7 == 1 (mod 10).
61^7 == 21 (mod 10^2).
961^7 == 321 (mod 10^3).
2961^7 == 4321 (mod 10^4).
42961^7 == 54321 (mod 10^5).
842961^7 == 654321 (mod 10^6).
8842961^7 == 7654321 (mod 10^7).
28842961^7 == 87654321 (mod 10^8).
928842961^7 == 987654321 (mod 10^9).
PROG
(PARI) N=100; M=987654321/(1-10^9); Vecrev(digits(lift(chinese(Mod((M+O(2^N))^(1/7), 2^N), Mod((M+O(5^N))^(1/7), 5^N)))), N)
CROSSREFS
Digits of the 10-adic integer (987654321/(1-10^9))^(1/k): A309818 (k=3), this sequence (k=7), A309820 (k=9).
Sequence in context: A072364 A087016 A161480 * A309825 A289503 A349522
KEYWORD
nonn,base
AUTHOR
Seiichi Manyama, Aug 18 2019
STATUS
approved