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 A124410 #13 Aug 04 2019 04:20:01
%S A124410 5415,12705,13020,44370,82950,98280,105525,112200,115140,123855,
%T A124410 134250,134460,187740,188745,210165,225705,247170,256410,296310,
%U A124410 302085,367875,375645,382890,399585,404040,476340,487830,526845,532095,566430,578085
%N A124410 Numbers k such that 2k+1, 4k+1, 6k+1, 8k+1 and 10k+1 are primes.
%H A124410 Jinyuan Wang, <a href="/A124410/b124410.txt">Table of n, a(n) for n = 1..1000</a>
%t A124410 Select[Range[600000], And @@ PrimeQ /@ ({2, 4, 6, 8, 10}*# + 1) &] (* _Ray Chandler_, Nov 20 2006 *)
%o A124410 (PARI) is(k) = sum(j = 1, 5, isprime(2*j*k+1)) == 5; \\ _Jinyuan Wang_, Aug 04 2019
%Y A124410 Cf. A005097, A005098, A024899, A005123, A024912, A123998, A124408, A124409, A124411, A071576.
%K A124410 nonn
%O A124410 1,1
%A A124410 _Artur Jasinski_, Oct 31 2006