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A290008
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Prime numbers of the form 6^k - 5.
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1
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31, 211, 1291, 36845653286788892983291, 1326443518324400147398651, 286511799958070431838109691, 174588755932389037098918153698611839369211, 380041719977839666236973721680871319659378770968571
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,1
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LINKS
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Robert Price, Table of n, a(n) for n = 1..10
F. Firoozbakht, M. F. Hasler, Variations on Euclid's formula for Perfect Numbers, JIS 13 (2010) #10.3.1.
Henri & Renaud Lifchitz, PRP Records
OpenPFGW Project, Primality Tester
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MATHEMATICA
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Select[Table[6^k - 5], {k, 1, 100}], PrimeQ[#] &]
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CROSSREFS
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Cf. A059614.
Sequence in context: A152730 A090027 A164784 * A121616 A284899 A062393
Adjacent sequences: A290005 A290006 A290007 * A290009 A290010 A290011
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KEYWORD
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nonn
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AUTHOR
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Robert Price, Sep 03 2017
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STATUS
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approved
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