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 A142518 #9 Sep 08 2022 08:45:36
%S A142518 23,127,179,283,439,491,647,751,907,1063,1427,1531,1583,1999,2207,
%T A142518 2311,2467,3299,3559,3767,3923,4027,4079,4339,4391,4547,4651,4703,
%U A142518 5119,5171,5431,5483,5639,5743,6211,6263,6367,6679,6991,7043,7459,7823,7927,8291
%N A142518 Primes congruent to 23 mod 52.
%H A142518 Vincenzo Librandi, <a href="/A142518/b142518.txt">Table of n, a(n) for n = 1..1000</a>
%F A142518 a(n) ~ 24n log n. - _Charles R Greathouse IV_, Jul 03 2016
%t A142518 Select[Prime[Range[1300]], MemberQ[{23}, Mod[#, 52]] &] (* _Vincenzo Librandi_, Aug 29 2012 *)
%o A142518 (Magma) [p: p in PrimesUpTo(10000) | p mod 52 eq 23]; // _Vincenzo Librandi_, Aug 29 2012
%o A142518 (PARI) is(n)=isprime(n) && n%52==23 \\ _Charles R Greathouse IV_, Jul 03 2016
%Y A142518 Cf. A000040.
%K A142518 nonn,easy
%O A142518 1,1
%A A142518 _N. J. A. Sloane_, Jul 11 2008