A057264 Numbers n such that n | 11^n + 10^n + 9^n + 8^n + 7^n + 6^n + 5^n.

1, 2, 4, 7, 14, 20, 28, 34, 49, 77, 98, 140, 196, 343, 686, 980, 1132, 1372, 1666, 1780, 2177, 2401, 4172, 4802, 5341, 6860, 7007, 9604, 9821, 16807, 17444, 22708, 33614, 48020, 67228, 81634, 83132

Offset

1,2

Links

Table of n, a(n) for n=1..37.

Mathematica

Select[ Range[ 10^5 ], Mod[ PowerMod[ 11, #, # ] + PowerMod[ 10, #, # ] + PowerMod[ 9, #, # ] + PowerMod[ 8, #, # ] + PowerMod[ 7, #, # ] + PowerMod[ 6, #, # ] + PowerMod[ 5, #, # ], # ] == 0 & ]

Crossrefs

Sequence in context: A018505 A280430 A108329 * A045514 A102957 A216898

Adjacent sequences: A057261 A057262 A057263 * A057265 A057266 A057267

Keyword

nonn

Author

Robert G. Wilson v, Sep 22 2000

Status

approved