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A290008 Prime numbers of the form 6^k - 5. 1
31, 211, 1291, 36845653286788892983291, 1326443518324400147398651, 286511799958070431838109691, 174588755932389037098918153698611839369211, 380041719977839666236973721680871319659378770968571 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

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

MATHEMATICA

Select[Table[6^k - 5], {k, 1, 100}], PrimeQ[#] &]

CROSSREFS

Cf. A059614.

Sequence in context: A152730 A090027 A164784 * A121616 A284899 A062393

Adjacent sequences:  A290005 A290006 A290007 * A290009 A290010 A290011

KEYWORD

nonn

AUTHOR

Robert Price, Sep 03 2017

STATUS

approved

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Last modified July 25 16:39 EDT 2021. Contains 346291 sequences. (Running on oeis4.)