A144245 - OEIS

%I #4 Oct 24 2012 11:49:17

%S 17,73,89,6553,6569,4782961,4782977,3486784393,3486784409,31381059601,

%T 1350851717672992097,984770902183611232889,

%U 381520424476945831628649898801,969773729787523602876821942164080815560169

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

%H Harvey P. Dale, <a href="/A144245/b144245.txt">Table of n, a(n) for n = 1..20</a>

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

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

%K nonn

%O 1,1

%A _Reikku Kulon_, Sep 15 2008

%E One additional term from _Harvey P. Dale_, Oct 24 2012