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 A289759 #6 Jul 12 2017 10:15:56
%S A289759 2,3,5,7,31,103,151,3823,16927,126223,137227543,76663738303,
%T A289759 475493443423,1132114642884223,232032717002861773,494437513909964623,
%U A289759 8949366251999798623,22043108115271868623,30822262564469609858623,29990243754746489604765373
%N A289759 Primes of the form k!8-2, where k!8 is the octuple factorial number (A114800).
%H A289759 Robert Price, <a href="/A289759/b289759.txt">Table of n, a(n) for n = 1..32</a>
%H A289759 Henri & Renaud Lifchitz, <a href="http://www.primenumbers.net/prptop/searchform.php?form=n8-2&action=Search">PRP Records.Search for n!8-2.</a>
%H A289759 Joe McLean, <a href="http://web.archive.org/web/20091027034731/http://uk.geocities.com/nassarawa%40btinternet.com/probprim2.htm">Interesting Sources of Probable Primes</a>
%H A289759 OpenPFGW Project, <a href="http://sourceforge.net/projects/openpfgw/">Primality Tester</a>
%t A289759 MultiFactorial[n_, k_] := If[n<1, 1, n*MultiFactorial[n-k, k]];
%t A289759 Select[Table[MultiFactorial[i, 8] - 2, {i, 3, 100}], PrimeQ[#]&]
%Y A289759 Cf. A204664.
%K A289759 nonn
%O A289759 1,1
%A A289759 _Robert Price_, Jul 11 2017