A057234 Numbers n such that n | 7^n + 6^n + 5^n.

1, 2, 3, 9, 10, 22, 27, 50, 57, 81, 243, 250, 530, 729, 1083, 1250, 2187, 5750, 6250, 6561, 15447, 19683, 20577, 31250, 42807, 59049, 84250, 92283, 105279, 156250, 177147, 331250, 390963, 480411, 530631, 531441, 536301, 781250

Offset

1,2

Links

Table of n, a(n) for n=1..38.

Mathematica

Select[ Range[ 10^6 ], Mod[ PowerMod[ 7, #, # ] + PowerMod[ 6, #, # ] + PowerMod[ 5, #, # ], # ] == 0 & ]

Crossrefs

Sequence in context: A353614 A352198 A003140 * A109636 A057236 A063257

Adjacent sequences: A057231 A057232 A057233 * A057235 A057236 A057237

Keyword

nonn

Author

Robert G. Wilson v, Sep 20 2000

Status

approved