A144245 Prime numbers of the form 9^k +- 8.

17, 73, 89, 6553, 6569, 4782961, 4782977, 3486784393, 3486784409, 31381059601, 1350851717672992097, 984770902183611232889, 381520424476945831628649898801, 969773729787523602876821942164080815560169, 145557834293068928043467566190278008218249525830565939618489

Offset

1,1

Links

Amiram Eldar, Table of n, a(n) for n = 1..21 (terms 1..20 from Harvey P. Dale)

Mathematica

Select[Union[Flatten[#+{8, -8}&/@(9^Range[100])]], PrimeQ] (* Harvey P. Dale, Oct 24 2012 *)

Crossrefs

Cf. A000040, A000668, A144231, A144232, A144233, A144234, A144236, A144242.

Sequence in context: A039371 A387776 A245042 * A307718 A139919 A043194

Adjacent sequences: A144242 A144243 A144244 * A144246 A144247 A144248

Keyword

nonn

Author

Reikku Kulon, Sep 15 2008

Extensions

Two additional terms from Harvey P. Dale, Oct 24 2012

Status

approved