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 A057233 Numbers n such that n | 8^n + 7^n + 6^n. 2
 1, 3, 7, 9, 21, 27, 49, 51, 63, 81, 147, 189, 243, 343, 441, 567, 729, 931, 1029, 1323, 1593, 1701, 2187, 2349, 2401, 2493, 2499, 3087, 3969, 4077, 4131, 5103, 6561, 7203, 9261, 11907, 15309, 16807, 19683, 21609, 27783, 31743, 35721, 45927, 50421 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 LINKS Robert Israel, Table of n, a(n) for n = 1..238 MAPLE select(n -> 6 &^ n + 7 &^ n + 8 &^ n) mod n = 0, [\$1..10^5]); # Robert Israel, Jan 30 2020 MATHEMATICA Select[ Range[ 10^6 ], Mod[ PowerMod[ 8, #, # ] + PowerMod[ 7, #, # ] + PowerMod[ 6, #, # ], # ] == 0 & ] CROSSREFS Contains A003594. Sequence in context: A118555 A056652 A014959 * A125227 A057286 A056745 Adjacent sequences:  A057230 A057231 A057232 * A057234 A057235 A057236 KEYWORD nonn AUTHOR Robert G. Wilson v, Sep 20 2000 STATUS approved

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Last modified May 21 07:22 EDT 2022. Contains 353889 sequences. (Running on oeis4.)