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 A141858 #21 Mar 10 2023 16:49:30
%S A141858 2,41,67,197,223,353,379,431,457,509,587,613,691,743,769,821,977,1237,
%T A141858 1289,1367,1471,1523,1549,1601,1627,1783,1861,1913,2017,2069,2251,
%U A141858 2381,2459,2693,2719,2797,2927,2953,3083,3109,3187,3343,3499,3733,3863,3889,3967
%N A141858 Primes congruent to 2 mod 13.
%H A141858 Vincenzo Librandi, <a href="/A141858/b141858.txt">Table of n, a(n) for n = 1..1000</a>
%F A141858 {2} UNION A140374. - _R. J. Mathar_, Jul 20 2008
%F A141858 a(n) ~ 12n log n. - _Charles R Greathouse IV_, Jul 02 2016
%t A141858 Select[Range[2, 20000, 13], PrimeQ] (* _Vladimir Joseph Stephan Orlovsky_, Jun 18 2011 *)
%t A141858 Select[Prime[Range[600]],Mod[#,13]==2&] (* _Harvey P. Dale_, Mar 10 2023 *)
%o A141858 (Magma) [ p: p in PrimesUpTo(11000) | p mod 13 eq 2 ]; // _Vincenzo Librandi_, Apr 07 2011
%o A141858 (PARI) is(n)=isprime(n) && n%13==2 \\ _Charles R Greathouse IV_, Jul 02 2016
%K A141858 nonn,easy
%O A141858 1,1
%A A141858 _N. J. A. Sloane_, Jul 11 2008