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 A082620 #37 Sep 21 2019 06:30:16 %S A082620 1,11,101,10301,1003001,100030001,10003630001,1000136310001, %T A082620 100010363010001,10001036363010001,1000103639363010001, %U A082620 100010356393653010001,10001033563936533010001,1000103305639365033010001,100010313056393650313010001,10001031305636963650313010001 %N A082620 a(1) = 1, then the smallest palindromic prime obtained by inserting digits anywhere in a(n-1). %H A082620 Giovanni Resta, <a href="/A082620/b082620.txt">Table of n, a(n) for n = 1..92</a> %Y A082620 Cf. A002385, A082621, A082622, A082623, A082624. %K A082620 base,nonn %O A082620 1,2 %A A082620 _Amarnath Murthy_ and Meenakshi Srikanth (menakan_s(AT)yahoo.com), Apr 29 2003 %E A082620 Corrected by _R. J. Mathar_, Oct 01 2006 %E A082620 a(7)-a(10) from _Felix Fröhlich_, Oct 16 2014 %E A082620 a(11)-a(12) from _Felix Fröhlich_, Nov 26 2014 %E A082620 a(13)-a(16) from _Felix Fröhlich_, Apr 02 2015 %E A082620 Terms a(8)-a(16) corrected by _Giovanni Resta_, Sep 20 2019