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Search: id:A057214
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| A057214 |
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Numbers n such that n | 10^n + 9^n + 8^n + 7^n. |
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+0
1
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| 1, 2, 6, 14, 17, 78, 98, 187, 221, 289, 406, 642, 686, 799, 1014, 1067, 1374, 1794, 2567, 2842, 4802, 4913, 8773, 10319, 11026, 11407, 11774, 12246, 13182, 15022, 19894, 23987, 24414, 31093, 33614, 60074, 63869, 64651, 73117, 82418, 83521, 94187
(list; graph; listen)
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OFFSET
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1,2
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MATHEMATICA
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Select[ Range[ 10^7 ], Mod[ PowerMod[ 10, #, # ] + PowerMod[ 9, #, # ] + PowerMod[ 8, #, # ], # ] + PowerMod[ 7, #, # ], # ] == 0 & ]
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CROSSREFS
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Sequence in context: A050859 A065196 A032483 this_sequence A139269 A140525 A032643
Adjacent sequences: A057211 A057212 A057213 this_sequence A057215 A057216 A057217
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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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EXTENSIONS
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Corrected by Don Reble (djr(AT)nk.ca), Nov 20 2006
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