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 A023232 #25 Sep 08 2022 08:44:47 %S A023232 11,13,23,29,31,41,43,53,71,73,79,83,109,149,151,193,199,211,233,251, %T A023232 263,269,283,331,349,353,379,389,401,419,431,461,499,521,541,563,569, %U A023232 599,601,643,653,659,661,673,743,809,821,853,881,911,941,983,991,1009,1019,1033 %N A023232 Primes p such that 8*p + 9 is also prime. %H A023232 Vincenzo Librandi, <a href="/A023232/b023232.txt">Table of n, a(n) for n = 1..1000</a> %t A023232 Select[Prime[Range[300]],PrimeQ[8#+9]&] (* _Harvey P. Dale_, Jan 26 2011 *) %o A023232 (Magma) [n: n in PrimesUpTo(1100) | IsPrime(8*n+9)]; // _Vincenzo Librandi_, Nov 20 2010 %K A023232 nonn,easy %O A023232 1,1 %A A023232 _David W. Wilson_