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 A167388 #25 Sep 15 2024 01:49:21
%S A167388 31,131,331,431,631,1031,1231,1531,1831,1931,2131,2531,2731,3331,3631,
%T A167388 3931,4231,4831,4931,5231,5431,5531,6131,7331,8231,8431,8731,8831,
%U A167388 9431,9631,9931,10331,10531,10631,10831,11131,11731,11831,13331,13831,13931
%N A167388 Prime numbers ending in the prime number 31.
%H A167388 Vincenzo Librandi, <a href="/A167388/b167388.txt">Table of n, a(n) for n = 1..1000</a>
%t A167388 Select[Prime[Range[6,1700]],Take[IntegerDigits[#],-2] =={3,1}&] (* _Harvey P. Dale_, Mar 31 2011 *)
%o A167388 (PARI) forprime(p=2,10^5,if(p%100==31,print1(p,", "))); /* _Joerg Arndt_, Apr 01 2011 */
%o A167388 (Magma) [n: n in PrimesUpTo(14000) | n mod 100 eq 31]; // _Vincenzo Librandi_ and _Bruno Berselli_, Apr 02 2011
%K A167388 nonn,base
%O A167388 1,1
%A A167388 _Mark A. Thomas_, Nov 02 2009