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 A087886 #24 Mar 17 2015 02:16:34 %S A087886 0,1,3,63,87,189,239,605,2099,3667,5029,20025,45285,99167 %N A087886 Numbers n such that 29^n + 2 is prime. %C A087886 After 0, all terms are odd. [_Bruno Berselli_, Oct 02 2014] %H A087886 Henri & Renaud Lifchitz, <a href="http://www.primenumbers.net/prptop/searchform.php?form=29%5En%2B2&action=Search">PRP Records</a>. %e A087886 a(1) = 1 is a member because 29^1 + 2 = 31 is prime. %e A087886 29^3+2 = 24391 is prime, so 3 is in the sequence. %o A087886 (PARI) for( n = 0,239, if( isprime( 29^n +2), print( n), )) %Y A087886 Cf. A051783, n such that 3^n +2 is prime. %Y A087886 Cf. A087885, 5^n +2 is prime. %K A087886 nonn,more %O A087886 1,3 %A A087886 _Donald S. McDonald_, Oct 13 2003 %E A087886 a(8) from Mark Hudson (mrmarkhudson(AT)hotmail.com), Sep 07 2004 %E A087886 a(9) - a(11), corresponding to probable primes, from _Ryan Propper_, Jul 03 2005 %E A087886 Edited by _T. D. Noe_, Oct 30 2008 %E A087886 a(12) from _Ray Chandler_, Aug 01 2011 %E A087886 a(13) from _Ray Chandler_, Aug 02 2011 %E A087886 a(14) from _Ray Chandler_, Aug 08 2011