A144234 - OEIS

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A144234

Prime numbers of the form 6^k +- 5.

%I #4 May 12 2015 18:38:47

%S 11,31,41,211,1291,1301,279941,60466181,78364164101,101559956668421,

%T 36845653286788892983291,1326443518324400147398651,

%U 7958661109946400884391941,286511799958070431838109691

%N Prime numbers of the form 6^k +- 5.

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

%Y Cf. A000040, A000668, A144231, A144232, A144233

%K nonn

%O 1,1

%A _Reikku Kulon_, Sep 15 2008