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A277630 Positive integers n such that 3^n == 8 (mod n). 3
1, 5, 2352527, 193841707, 17126009179703, 380211619942943 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

No other terms below 10^15. - Max Alekseyev, Sep 13 2017

LINKS

Table of n, a(n) for n=1..6.

PROG

(PARI) isok(n) = Mod(3, n)^n == Mod(8, n);

CROSSREFS

Solutions to 3^n == k (mod n): A277340 (k=-11), A277289 (k=-7), A277288 (k=-5), A015973 (k=-2), A015949 (k=-1), A067945 (k=1), A276671 (k=2), A276740 (k=5), A277628 (k=6), A277126 (k=7), this sequence (k=8), A277274 (k=11).

Sequence in context: A123693 A269527 A111727 * A231018 A115738 A115763

Adjacent sequences:  A277627 A277628 A277629 * A277631 A277632 A277633

KEYWORD

nonn,more

AUTHOR

Dmitry Ezhov, Oct 24 2016

EXTENSIONS

a(5)-a(6) established by Max Alekseyev, Sep 13 2017

STATUS

approved

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Last modified May 25 12:30 EDT 2019. Contains 323568 sequences. (Running on oeis4.)