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A292333
Numbers k such that k^2 divides 8^k + 1.
0
1, 3, 9, 57, 171, 32547, 97641, 784899, 9961491, 14913081, 24738057, 29884473, 250537059, 297381939, 892145817, 1338104811, 4014314433, 5688011361, 8515369251, 8920514307, 9146532873, 14125430547, 17064034083, 26761542921, 27439598619, 143056660689, 243640690617, 730922071851, 2157430689027, 2606254774803, 4323297055491, 5222670270483
OFFSET
1,2
CROSSREFS
Cf. A062395. Subsequence of A015955.
Sequence in context: A183303 A075979 A128681 * A294785 A040175 A192252
KEYWORD
nonn
AUTHOR
Max Alekseyev, Sep 14 2017
STATUS
approved