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 A046141 #20 Jul 20 2025 06:37:16
%S A046141 5,11,29,59,71,89,101,269,389,431,449,479,491,761,929,1289,1439,1481,
%T A046141 1559,1571,1601,2129,2339,2381,2531,2609,2699,2741,2789,3011,3209,
%U A046141 3449,3911,4721,5471,5519,5639,5849,6569,6899,6959
%N A046141 p, p+8 and p+12 are primes.
%H A046141 R. J. Mathar, <a href="/A046141/b046141.txt">Table of n, a(n) for n = 1..3766</a>
%H A046141 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/PrimeTriplet.html">Prime Triplet.</a>
%t A046141 Select[Range@ 7000, AllTrue[{#, # + 8, # + 12}, PrimeQ] &] (* _Michael De Vlieger_, Jul 24 2015, Version 10 *)
%t A046141 Select[Prime[Range[1000]],AllTrue[#+{8,12},PrimeQ]&] (* _Harvey P. Dale_, Oct 07 2023 *)
%o A046141 (PARI) lista(nn) = forprime(p=2, nn, if (isprime(p+8) && isprime(p+12), print1(p, ", "))); \\ _Michel Marcus_, Jul 24 2015
%Y A046141 Cf. A023202, A046133.
%K A046141 nonn
%O A046141 1,1
%A A046141 _Eric W. Weisstein_