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 A309375 #14 May 14 2023 02:33:35 %S A309375 2,5,11,101,131,181,191,313,353,373,383,757,797,919,929,10301,10601, %T A309375 11311,11411,12421,12721,12821,13331,13931,14341,14741,15451,15551, %U A309375 16061,16361,16561,16661,17471,17971,18481,19391,19891,19991,30203,30403,30703,30803 %N A309375 Unlucky palindromic primes. %H A309375 Amiram Eldar, <a href="/A309375/b309375.txt">Table of n, a(n) for n = 1..5527</a> (terms below 10^9) %e A309375 a(1) = 2 because 2 is both a palindromic prime (A002385) and an unlucky number (A050505). %o A309375 (SageMath) %o A309375 [ p for p in A002385 if p in A050505 ] %Y A309375 Intersection of A002385 and A050505. %Y A309375 Cf. A031881. %K A309375 nonn,base %O A309375 1,1 %A A309375 _Hauke Löffler_, Jul 26 2019 %E A309375 4 wrong terms removed and more terms added by _Amiram Eldar_, May 14 2023