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 A076185 #41 Apr 03 2023 10:36:10 %S A076185 0,1,3,5,7,9,21,23,27,57,75,103,169,219,245,461,695,1169,3597,3637, %T A076185 7495,27743,28799,32501 %N A076185 Numbers n such that n!! + 2 is prime. %C A076185 a(25) > 50000. - _Robert Price_, Jan 18 2015 %C A076185 a(1)=0 since 0!!=1 and 1+2 = 3 is prime. - _Robert Price_, Jan 18 2015 %H A076185 C. K. Caldwell, The Prime Glossary, <a href="https://t5k.org/glossary/page.php/MultifactorialPrime.html">Multifactorial prime</a> %H A076185 C. Caldwell and H. Dubner (Eds): <a href="https://t5k.org/lists/top_ten/">The top ten prime numbers: from the unpublished collections of R. Ondrejka</a> (May 2001), Table 21 F, p. 75 %H A076185 Ken Davis, <a href="http://mfprimes.free-dc.org">Status of Search for Multifactorial Primes</a>. %H A076185 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 A076185 The OpenPFGW Project, <a href="http://sourceforge.net/projects/openpfgw/">Primality Tester</a> %t A076185 lst={};Do[If[PrimeQ[n!!+2], AppendTo[lst, n]], {n, 0, 13^3}];lst (* _Vladimir Joseph Stephan Orlovsky_, Sep 08 2008 *) %t A076185 Select[Range[0,33000],PrimeQ[#!!+2]&] (* _Harvey P. Dale_, Jul 28 2017 *) %Y A076185 Cf. A006882, A080778 and A076186, A076188, A076189, A076190, A076193, A076194, A076195, A076196, A076197 for other values of s in n!! + 2^s. %K A076185 nonn,more %O A076185 1,3 %A A076185 _Zak Seidov_, Nov 02 2002 %E A076185 Edited and extended (n<4096) by _Hugo Pfoertner_, Jun 19 2003 %E A076185 One more term from Herman Jamke (hermanjamke(AT)fastmail.fm), Dec 30 2007 %E A076185 a(22) - a(23) from _Robert Price_, Oct 17 2012 %E A076185 a(24) from _Robert Price_, Jan 18 2015