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 A142553 #11 Sep 08 2022 08:45:36
%S A142553 23,659,977,1613,1931,2143,3203,3733,4051,4157,4793,5323,5641,6277,
%T A142553 6701,7019,7549,7867,8291,8609,8821,10093,10729,11047,11471,11789,
%U A142553 12107,12637,12743,13591,13697,14969,15287,15817,15923,16453,18043,18149,18679,19421
%N A142553 Primes congruent to 23 mod 53.
%H A142553 Vincenzo Librandi, <a href="/A142553/b142553.txt">Table of n, a(n) for n = 1..1000</a>
%F A142553 a(n) ~ 52n log n. - _Charles R Greathouse IV_, Jul 03 2016
%t A142553 Select[Prime[Range[2600]], MemberQ[{23}, Mod[#, 53]] &] (* _Vincenzo Librandi_, Aug 30 2012 *)
%t A142553 Select[Range[23,20000,53],PrimeQ] (* _Harvey P. Dale_, Mar 16 2016 *)
%o A142553 (Magma) [p: p in PrimesUpTo(20000) | p mod 53 eq 23]; // _Vincenzo Librandi_, Aug 30 2012
%o A142553 (PARI) is(n)=isprime(n) && n%53==23 \\ _Charles R Greathouse IV_, Jul 03 2016
%Y A142553 Cf. A000040.
%K A142553 nonn,easy
%O A142553 1,1
%A A142553 _N. J. A. Sloane_, Jul 11 2008