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 A126720 #11 Mar 13 2020 12:38:08 %S A126720 1693,2203,4201,4547,4783,5261,6197,6421,6761,7103,7393,7817,8147, %T A126720 8353,9091,11027,11657,11863,12097,12143,13033,13291,16057,16217, %U A126720 16477,16787,16811,17077,17707,18013,18617,18661,19207,19531,20507,22433,22901 %N A126720 Primes p such that p - q = 24, where q is the previous prime before p; or prime numbers preceded by precisely 23 composite numbers. %H A126720 Amiram Eldar, <a href="/A126720/b126720.txt">Table of n, a(n) for n = 1..10000</a> %F A126720 a(n) = A098974(n) + 24. - _Amiram Eldar_, Mar 13 2020 %F A126720 a(n) >> n log^2 n. - _Charles R Greathouse IV_, Mar 13 2020 %t A126720 a = {}; Do[If[Prime[x + 1] - Prime[x] == 24, AppendTo[a, Prime[x + 1]]], {x, 1, 10000}]; a %o A126720 (PARI) q=2; forprime(p=3,1e5, if(p-q==24, print1(p", ")); q=p) \\ _Charles R Greathouse IV_, Mar 13 2020 %Y A126720 Cf. A000230, A033560, A031505, A031925, A031927, A098974, A098976, A061779. %K A126720 nonn,easy %O A126720 1,1 %A A126720 _Artur Jasinski_, Feb 13 2007