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 A141923 #14 Jul 01 2023 11:04:18 %S A141923 19,157,433,479,571,617,709,1031,1123,1307,1399,1583,1721,1951,1997, %T A141923 2089,2273,2411,2503,2549,2687,2917,2963,3331,3469,3607,3929,4021, %U A141923 4159,4297,4481,4987,5171,5309,5861,5953,6091,6229,6367,6551,6689,6781,6827,7057 %N A141923 Primes congruent to 19 mod 23. %H A141923 Vincenzo Librandi, <a href="/A141923/b141923.txt">Table of n, a(n) for n = 1..1000</a> %F A141923 a(n) ~ 22n log n. - _Charles R Greathouse IV_, Jul 02 2016 %t A141923 Select[Range[19,20000,23],PrimeQ] (* _Vladimir Joseph Stephan Orlovsky_, May 18 2011 *) %t A141923 Select[Prime[Range[1000]],Mod[#,23]==19&] (* _Harvey P. Dale_, Jul 01 2023 *) %o A141923 (Magma) [p: p in PrimesUpTo(9000) | p mod 23 eq 19 ]; // _Vincenzo Librandi_, Aug 16 2012 %o A141923 (PARI) is(n)=isprime(n) && n%23==19 \\ _Charles R Greathouse IV_, Jul 02 2016 %Y A141923 Cf. A000040, A141924, A141925, A141926. %K A141923 nonn,easy %O A141923 1,1 %A A141923 _N. J. A. Sloane_, Jul 11 2008