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 A142192 #12 Sep 08 2022 08:45:35
%S A142192 23,103,223,263,383,463,503,743,823,863,983,1063,1103,1223,1303,1423,
%T A142192 1543,1583,1663,1783,1823,2063,2143,2383,2423,2503,2543,2663,2903,
%U A142192 3023,3343,3463,3583,3623,3823,3863,3943,4423,4463,4583,4663,4703,4783,4903,4943
%N A142192 Primes congruent to 23 mod 40.
%H A142192 Vincenzo Librandi, <a href="/A142192/b142192.txt">Table of n, a(n) for n = 1..1000</a>
%F A142192 a(n) ~ 16n log n. - _Charles R Greathouse IV_, Jul 02 2016
%t A142192 Select[Prime[Range[2000]],MemberQ[{23},Mod[#,40]]&] (* _Vincenzo Librandi_, Aug 22 2012 *)
%t A142192 Select[Range[23,5000,40],PrimeQ] (* _Harvey P. Dale_, Apr 22 2018 *)
%o A142192 (Magma) [p: p in PrimesUpTo(6000) | p mod 40 eq 23 ]; // _Vincenzo Librandi_, Aug 22 2012
%o A142192 (PARI) is(n)=isprime(n) && n%40==23 \\ _Charles R Greathouse IV_, Jul 02 2016
%Y A142192 Cf. A000040.
%K A142192 nonn,easy
%O A142192 1,1
%A A142192 _N. J. A. Sloane_, Jul 11 2008