A147671 Primes of the form 9^k-8^k.

17, 2685817, 4555386192335572300559213161, 371616904162662789429456905017, 8591830681082909151487632391785043782074371844781522582861081817, 15210163976423790740121668878903464496715921225994590375394324312407011207180253342612172354203245908479382157462960757179523559095554271755561

Offset: 1

Author

Vladimir Joseph Stephan Orlovsky, Nov 10 2008

Keywords

• nonn

Crossrefs

Cf. A016185, A059803.

Programs

Mathematica

lst={};Do[p=9^n-8^n;If[PrimeQ[p],AppendTo[lst,p]],{n,6!}];lst
Select[Table[9^n-8^n,{n,150}],PrimeQ] (* Harvey P. Dale, May 13 2018 *)