This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A147671 #10 Aug 03 2025 13:52:19
%S A147671 17,2685817,4555386192335572300559213161,
%T A147671 371616904162662789429456905017,
%U A147671 8591830681082909151487632391785043782074371844781522582861081817,15210163976423790740121668878903464496715921225994590375394324312407011207180253342612172354203245908479382157462960757179523559095554271755561
%N A147671 Primes of the form 9^k-8^k.
%t A147671 lst={};Do[p=9^n-8^n;If[PrimeQ[p],AppendTo[lst,p]],{n,6!}];lst
%t A147671 Select[Table[9^n-8^n,{n,150}],PrimeQ] (* _Harvey P. Dale_, May 13 2018 *)
%Y A147671 Cf. A016185, A059803.
%K A147671 nonn
%O A147671 1,1
%A A147671 _Vladimir Joseph Stephan Orlovsky_, Nov 10 2008