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Search: id:A057231
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| A057231 |
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Numbers n such that n | 9^n + 8^n + 7^n. |
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+0
1
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| 1, 2, 3, 9, 27, 33, 81, 194, 243, 729, 1647, 2187, 2673, 6561, 15957, 19683, 59049, 133407, 177147, 216513, 314523, 531441, 699597
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OFFSET
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1,2
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MATHEMATICA
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Select[ Range[ 10^6 ], Mod[ PowerMod[ 9, #, # ] + PowerMod[ 8, #, # ] + PowerMod[ 7, #, # ], # ] == 0 & ]
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CROSSREFS
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Sequence in context: A143742 A038523 A096237 this_sequence A045596 A057299 A057296
Adjacent sequences: A057228 A057229 A057230 this_sequence A057232 A057233 A057234
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KEYWORD
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nonn
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AUTHOR
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Robert G. Wilson v (rgwv(AT)rgwv.com), Sep 20 2000
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