A147671 Primes of the form : 9^n-8^n.

17, 2685817, 4555386192335572300559213161, 371616904162662789429456905017, 8591830681082909151487632391785043782074371844781522582861081817, 15210163976423790740121668878903464496715921225994590375394324312407011207180253342612172354203245908479382157462960757179523559095554271755561

Offset

1,1

Links

Table of n, a(n) for n=1..6.

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 *)

Crossrefs

Cf. A016185, A059803

Sequence in context: A125039 A125041 A013806 * A104536 A178716 A013882

Adjacent sequences: A147668 A147669 A147670 * A147672 A147673 A147674

Keyword

nonn

Author

Vladimir Joseph Stephan Orlovsky, Nov 10 2008

Status

approved