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 A062232 #21 Oct 31 2019 01:25:05 %S A062232 9,161,219,4859,21989,52931,88595 %N A062232 Numbers k such that the smoothly undulating palindromic number (98*10^k - 89)/99 is a prime. %C A062232 Prime versus probable prime status and proofs are given in the author's table. %C A062232 No further terms < 100000. - _Ray Chandler_, Aug 17 2011 %H A062232 Patrick De Geest, <a href="http://www.worldofnumbers.com/undulat.htm#supp989">SUPP Reference Table - 989</a> %H A062232 <a href="/index/Pri#pri_supp">Index entries for sequences related to smoothly undulating palindromic primes</a> %e A062232 k=9 -> (98*10^9 - 89)/99 = 989898989. %Y A062232 Cf. A062209-A062231, A059758, A032758. %K A062232 nonn,base,more %O A062232 1,1 %A A062232 _Patrick De Geest_ and Hans Rosenthal (Hans.Rosenthal(AT)t-online.de), Jun 15 2001 %E A062232 a(6)=52931 from _Ray Chandler_, Nov 11 2010 %E A062232 a(7)=88595 from _Ray Chandler_, Jul 23 2011 %E A062232 Edited by _Ray Chandler_, Aug 17 2011