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A057243
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Numbers n such that n | 8^n + 7^n + 6^n + 5^n.
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0
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1, 2, 6, 13, 58, 169, 2197, 4069, 4303, 28561, 52897, 89078, 122681, 145457, 234526, 371293, 442074, 687661
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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MATHEMATICA
| Select[ Range[ 1, 10^5 ], Mod[ PowerMod[ 8, #, # ] + PowerMod[ 7, #, # ] + PowerMod[ 6, #, # ] + PowerMod[ 5, #, # ], # ] == 0 & ]
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CROSSREFS
| Sequence in context: A124124 A052450 A001373 * A012470 A056592 A091719
Adjacent sequences: A057240 A057241 A057242 * A057244 A057245 A057246
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KEYWORD
| nonn
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AUTHOR
| Robert G. Wilson v (rgwv(AT)rgwv.com), Sep 20 2000
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