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A128682
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Numbers n such that n^3 divides 9^(n^2)+1.
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19
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1, 5, 505, 5905, 596405, 1971005, 199071505, 515151005, 581457505, 618181105, 2327756905, 11855474405, 19555113485, 31361954905, 101901244565, 235103447405, 305354088005, 395331063745, 600905819065, 608393336905, 686701313405, 730071885005
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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COMMENTS
| 5 divides a(n) for n>1.
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CROSSREFS
| Cf. A127263, A128677, A128678, A128679, A128680, A128681, A128683, A128684, A128685.
Sequence in context: A013305 A114066 A083151 * A068234 A012741 A003394
Adjacent sequences: A128679 A128680 A128681 * A128683 A128684 A128685
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KEYWORD
| nonn
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AUTHOR
| Alexander Adamchuk (alex(AT)kolmogorov.com), Mar 31 2007
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EXTENSIONS
| a(5), a(6) from J. Mulder (jasper.mulder(AT)planet.nl), Jan 26 2010
Terms a(7) onward from Max Alekseyev (maxale(AT)gmail.com), May 14 2010
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