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 A128448 #24 Jul 29 2024 07:37:26
%S A128448 1,11,89,201,977,1351,3869,60681
%N A128448 Numbers k such that 8^k - k^8 is prime.
%C A128448 From the Lifchitz link: 60681 and 85349 are also in this sequence. - _Robert Price_, Mar 27 2019
%H A128448 Henri Lifchitz and Renaud Lifchitz, <a href="http://www.primenumbers.net/prptop/searchform.php?form=8%5En-n%5E8&action=Search">PRP Records</a>.
%t A128448 lst={};k=8;Do[If[PrimeQ[Abs[k^n-n^k]], AppendTo[lst, n]], {n, 0, 10^4}];lst (* _Vladimir Joseph Stephan Orlovsky_, Sep 10 2008 *)
%o A128448 (PARI) is(n)=isprime(8^n-n^8) \\ _Charles R Greathouse IV_, Feb 17 2017
%Y A128448 Cf. A072180, A109387, A117705, A117706, A128447, A128449, A128450, A128451, A122003, A128453, A128454.
%K A128448 hard,more,nonn
%O A128448 1,2
%A A128448 _Alexander Adamchuk_, Mar 03 2007
%E A128448 a(6) and a(7) from _Donovan Johnson_, Feb 26 2008
%E A128448 a(8) confirmed (no intervening terms) by _Michael S. Branicky_, Jul 29 2024