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A144234 Prime numbers of the form 6^k +- 5. 7
11, 31, 41, 211, 1291, 1301, 279941, 60466181, 78364164101, 101559956668421, 36845653286788892983291, 1326443518324400147398651, 7958661109946400884391941, 286511799958070431838109691 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..14.

MATHEMATICA

Select[Sort[Flatten[#+{5, -5}&/@(6^Range[50])]], PrimeQ] (* Harvey P. Dale, May 12 2015 *)

CROSSREFS

Cf. A000040, A000668, A144231, A144232, A144233

Sequence in context: A153128 A040971 A138656 * A109548 A173767 A142343

Adjacent sequences:  A144231 A144232 A144233 * A144235 A144236 A144237

KEYWORD

nonn

AUTHOR

Reikku Kulon, Sep 15 2008

STATUS

approved

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Last modified December 5 13:26 EST 2019. Contains 329751 sequences. (Running on oeis4.)