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 A128451 #26 Jul 29 2024 07:15:57
%S A128451 8,14,80,212,230,1352,13674,16094,44772
%N A128451 Numbers k such that the absolute value of 11^k - k^11 is prime.
%C A128451 Two larger terms 13674 and 16094 found by _Donovan Johnson_, Jul 2005.
%H A128451 Henri Lifchitz and Renaud Lifchitz, <a href="http://www.primenumbers.net/prptop/searchform.php?form=11%5En-n%5E11&action=Search">PRP Records</a>.
%t A128451 lst={};k=11;Do[If[PrimeQ[Abs[k^n-n^k]], AppendTo[lst, n]], {n, 0, 10^4}];lst (* _Vladimir Joseph Stephan Orlovsky_, Sep 10 2008 *)
%o A128451 (PARI) is(n)=ispseudoprime(abs(11^n-n^11)) \\ _Charles R Greathouse IV_, Feb 17 2017
%Y A128451 Cf. A072180, A109387, A117705, A117706, A128447, A128448, A128449, A128450, A122003, A128453.
%K A128451 hard,more,nonn,less
%O A128451 1,1
%A A128451 _Alexander Adamchuk_, Mar 03 2007
%E A128451 a(6)-a(8) from _Donovan Johnson_, Feb 26 2008
%E A128451 a(9) discovered by _Serge Batalov_, entered by _Robert Price_, Apr 11 2019