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 A142790 #9 Sep 08 2022 08:45:37
%S A142790 23,83,263,383,443,503,563,683,743,863,983,1103,1163,1223,1283,1523,
%T A142790 1583,1823,2003,2063,2243,2423,2543,2663,2843,2903,2963,3023,3083,
%U A142790 3203,3323,3623,3803,3863,3923,4283,4463,4523,4583,4643,4703,4943,5003,5303,5483
%N A142790 Primes congruent to 23 mod 60.
%H A142790 Vincenzo Librandi, <a href="/A142790/b142790.txt">Table of n, a(n) for n = 1..1000</a>
%F A142790 a(n) ~ 16n log n. - _Charles R Greathouse IV_, Jul 02 2016
%t A142790 Select[Prime[Range[800]], MemberQ[{23}, Mod[#, 60]] &] (* _Vincenzo Librandi_, Sep 04 2012 *)
%o A142790 (Magma) [p: p in PrimesUpTo(6000) | p mod 60 eq 23 ]; // _Vincenzo Librandi_, Sep 04 2012
%o A142790 (PARI) is(n)=isprime(n) && n%60==23 \\ _Charles R Greathouse IV_, Jul 02 2016
%Y A142790 Cf. A000040.
%K A142790 nonn,easy
%O A142790 1,1
%A A142790 _N. J. A. Sloane_, Jul 11 2008