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 A141999 #17 Sep 08 2022 08:45:35 %S A141999 23,139,197,313,487,661,719,1009,1531,1879,2053,2111,2459,2633,2749, %T A141999 3271,3329,3677,3793,3851,3967,4373,4547,4663,4721,5011,5417,5591, %U A141999 5881,5939,6113,6229,6287,6577,6983,7331,7621,7853,8317,8839,9013,9187,9419,9767 %N A141999 Primes congruent to 23 mod 29. %H A141999 Vincenzo Librandi, <a href="/A141999/b141999.txt">Table of n, a(n) for n = 1..1000</a> %F A141999 a(n) ~ 28n log n. - _Charles R Greathouse IV_, Jul 02 2016 %t A141999 Select[Range[23,20000,29],PrimeQ] (* _Vladimir Joseph Stephan Orlovsky_, Apr 07 2011 *) %o A141999 (Magma) [p: p in PrimesUpTo(12000) | p mod 29 eq 23 ]; // _Vincenzo Librandi_, Aug 17 2012 %o A141999 (PARI) is(n)=isprime(n) && n%29==23 \\ _Charles R Greathouse IV_, Jul 02 2016 %Y A141999 Cf. A000040, A141977, A141978. %K A141999 nonn,easy %O A141999 1,1 %A A141999 _N. J. A. Sloane_, Jul 11 2008