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 A099746 #6 Mar 28 2015 21:58:52
%S A099746 10301,10501,10601,1022201,1028201,1035301,1043401,1055501,1062601,
%T A099746 1065601,1074701,1082801,1085801,1092901,1093901,101030101,101060101,
%U A099746 101141101,101171101,101282101,101292101,101343101,101373101,101414101
%N A099746 Primes arising in A099744.
%C A099746 Prompted by Harvey Dubner's Nov 07 2004 discovery that 10000...000M000...00001 with M=3761673, a palindrome, is a 130023-digit palindromic prime.
%t A099746 p = Select[ Range[ 22322], # == FromDigits[ Reverse[ IntegerDigits[ # ]]] &]; q = Select[p, PrimeQ[ FromDigits[ Join[{1, 0}, IntegerDigits[ # ], {0, 1}]]] &]; Table[ FromDigits[ Join[{1, 0}, IntegerDigits[ q[[n]]], {0, 1}]], {n, 24}]; (* _Robert G. Wilson v_, Nov 20 2004 *)
%Y A099746 Cf. A099744, A100026, A100027.
%K A099746 nonn,easy,base
%O A099746 1,1
%A A099746 _N. J. A. Sloane_, Nov 19 2004
%E A099746 More terms from _Robert G. Wilson v_, Nov 20 2004