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 A064963 #6 Mar 18 2022 15:50:04
%S A064963 676,1189,2515,2830,8224,9001,10621,10786,17611,18640,20983,21277,
%T A064963 23419,28468,31450,37720,41530,41596,42025,45238,47212,49912,50992,
%U A064963 52222,53815,65827,70786,77044,82324,88297,88918,96193,99262,101992
%N A064963 10000n+1, 10000n+3, 10000n+7, 10000n+9 are all primes.
%H A064963 Harvey P. Dale, <a href="/A064963/b064963.txt">Table of n, a(n) for n = 1..1000</a>
%t A064963 Select[Range[10^5], PrimeQ[10^4# + 1] && PrimeQ[10^4# + 3] && PrimeQ[10^4# + 7] && PrimeQ[10^4# + 9] &]
%t A064963 Select[Range[120000],AllTrue[10000#+{1,3,7,9},PrimeQ]&] (* _Harvey P. Dale_, Mar 18 2022 *)
%Y A064963 Cf. A007811 and A064687.
%K A064963 nonn
%O A064963 1,1
%A A064963 _Robert G. Wilson v_, Oct 29 2001