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 A081710 #12 Nov 15 2019 16:03:43 %S A081710 1,2,3,4,5,6,8,17,18,24,95,96,142,1022,1120,1580,6942,19255,19401 %N A081710 n! + n# + 1 is prime, where n# is the primorial function. %C A081710 Some of the larger entries may only correspond to probable primes. %H A081710 Mike Oakes, <a href="http://groups.yahoo.com/group/primenumbers/message/12028">Primo-factorials</a>. %H A081710 Mike Oakes, <a href="/A081710/a081710.txt">Primo-factorials</a>, message 12028 in primenumbers Yahoo group, Apr 3, 2003. [Cached copy] %H A081710 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> %e A081710 a(2)=2 because 2!+2#+1=5 is prime %Y A081710 Cf. A081711, A081712, A081713. %K A081710 nonn,more,hard %O A081710 1,2 %A A081710 _Mike Oakes_, Apr 04 2003 %E A081710 More terms from Herman Jamke (hermanjamke(AT)fastmail.fm), Jan 03 2008