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A068382 Numbers n such that n divides 9^n-1. +0
3
1, 2, 4, 8, 10, 16, 20, 32, 40, 50, 64, 80, 100, 110, 128, 136, 160, 164, 200, 220, 250, 256, 272, 320, 328, 400, 440, 500, 512, 544, 550, 610, 640, 656, 680, 800, 820, 880, 1000, 1024, 1088, 1100, 1210, 1220, 1250, 1280, 1312, 1360, 1544, 1600, 1640, 1760 (list; graph; listen)
OFFSET

1,2

COMMENT

for all k 2^k, 10^k, 2*10k, 10*2^k are in the sequence...

CROSSREFS

Sequence in context: A060378 A036975 A093547 this_sequence A025612 A102248 A161374

Adjacent sequences: A068379 A068380 A068381 this_sequence A068383 A068384 A068385

KEYWORD

easy,nonn

AUTHOR

Benoit Cloitre (benoit7848c(AT)orange.fr), Mar 05 2002

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Last modified December 1 19:22 EST 2009. Contains 167811 sequences.


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