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 A233756 #23 Nov 05 2015 11:22:25 %S A233756 5,23,17,67,43,257,113,227,191,587,277,653,647,647,947,2081,1697,1619, %T A233756 1283,2083,1873,2719,4159,2729,2551,3947,3083,4703,6577,5927,5669, %U A233756 5813,6737,8231,7673,9293,10267,8819,11527,12799,10169,14369,10301,10039,11597 %N A233756 The n-th palindromic prime in base n. %H A233756 Chai Wah Wu, <a href="/A233756/b233756.txt">Table of n, a(n) for n = 2..10000</a> %p A233756 A233756 := proc(n) %p A233756 A230820(n,n) ; %p A233756 end proc: %p A233756 seq(A233756(n),n=2..50) ; # _R. J. Mathar_, Feb 16 2014 %Y A233756 2nd diagonal of A230820. %K A233756 nonn,base %O A233756 2,1 %A A233756 _Jake Lai_, Dec 27 2013