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 A141921 #12 Sep 08 2022 08:45:35 %S A141921 17,109,293,431,523,569,661,937,983,1213,1259,1489,1627,1811,1949, %T A141921 2087,2179,2593,2731,2777,3191,3329,3467,3559,3697,3881,4019,4111, %U A141921 4157,4663,4801,5077,5261,5399,5813,6043,6089,6733,6779,6871,6917,7193,7331,7561 %N A141921 Primes congruent to 17 mod 23. %H A141921 Vincenzo Librandi, <a href="/A141921/b141921.txt">Table of n, a(n) for n = 1..1000</a> %F A141921 a(n) ~ 22n log n. - _Charles R Greathouse IV_, Jul 02 2016 %t A141921 Select[Range[17,20000,23],PrimeQ] (* _Vladimir Joseph Stephan Orlovsky_, May 18 2011 *) %o A141921 (Magma) [p: p in PrimesUpTo(9000) | p mod 23 eq 17 ]; // _Vincenzo Librandi_, Aug 16 2012 %o A141921 (PARI) is(n)=isprime(n) && n%23==17 \\ _Charles R Greathouse IV_, Jul 02 2016 %Y A141921 Cf. A000040, A141922, A141923, A141924. %K A141921 nonn,easy %O A141921 1,1 %A A141921 _N. J. A. Sloane_, Jul 11 2008