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 A142935 #14 Sep 08 2022 08:45:37
%S A142935 23,151,599,727,919,983,1303,1367,1559,1879,2647,2711,2903,3607,3671,
%T A142935 3863,4567,4759,4951,5399,5527,5591,5783,6359,6551,6679,6871,7127,
%U A142935 7639,7703,8087,8599,8663,9239,9431,9623,10007,10391,10711,10903,11159,11287,11351
%N A142935 Primes congruent to 23 mod 64.
%H A142935 Vincenzo Librandi, <a href="/A142935/b142935.txt">Table of n, a(n) for n = 1..1000</a>
%F A142935 a(n) ~ 32n log n. - _Charles R Greathouse IV_, Jul 03 2016
%t A142935 lst={};Do[p=Prime[n];If[Mod[p,64]==23,AppendTo[lst,p]],{n,7!}];lst (* _Vladimir Joseph Stephan Orlovsky_, Feb 27 2009 *)
%t A142935 Select[Prime[Range[1800]], MemberQ[{23}, Mod[#, 64]] &] (* _Vincenzo Librandi_, Sep 06 2012 *)
%o A142935 (Magma) [p: p in PrimesUpTo(12000) | p mod 64 eq 23 ]; // _Vincenzo Librandi_, Sep 06 2012
%o A142935 (PARI) is(n)=isprime(n) && n%64==23 \\ _Charles R Greathouse IV_, Jul 03 2016
%Y A142935 Cf. A000040.
%K A142935 nonn,easy
%O A142935 1,1
%A A142935 _N. J. A. Sloane_, Jul 11 2008