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A057240 Numbers n such that n | 11^n + 10^n + 9^n + 8^n. 0
1, 2, 6, 19, 78, 122, 209, 247, 361, 979, 1014, 1577, 5819, 6859, 8346, 13182, 71599, 75449, 89167, 115159, 127699, 130321, 140429, 142194, 171366, 207727, 212563, 225929, 267007, 274242, 353419, 686478, 854778, 920959 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..34.

MATHEMATICA

Select[ Range[ 1, 10^6 ], Mod[ PowerMod[ 11, #, # ] + PowerMod[ 10, #, # ] + PowerMod[ 9, #, # ] + PowerMod[ 8, #, # ], # ] == 0 & ]

CROSSREFS

Sequence in context: A181770 A138800 A008989 * A079564 A273988 A287897

Adjacent sequences:  A057237 A057238 A057239 * A057241 A057242 A057243

KEYWORD

nonn

AUTHOR

Robert G. Wilson v, Sep 20 2000

STATUS

approved

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Last modified September 18 03:39 EDT 2020. Contains 337164 sequences. (Running on oeis4.)