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 A107308 #18 Sep 08 2022 08:45:18 %S A107308 12,16,18,22,30,36,40,42,46,48,60,70,82,88,90,96,102,112,118,120,126, %T A107308 130,132,148,156,166,172,180,190,196,198,202,228,238,246,250,256,258, %U A107308 268,280,282,286,300,316,330,340,342,348,352,382,390,406,408,420,426 %N A107308 Numbers k such that (29*k - 31) is prime. %C A107308 29 and 31 are twin primes. %H A107308 Harvey P. Dale, <a href="/A107308/b107308.txt">Table of n, a(n) for n = 1..1000</a> %e A107308 If k=48, then 29*k - 31 = 1361 (prime). %t A107308 Select[Range[2,500],PrimeQ[29#-31]&] (* _Harvey P. Dale_, Apr 22 2016 *) %o A107308 (Magma) [n: n in [2..100000] | IsPrime(29*n - 31)]; // _Vincenzo Librandi_, Nov 13 2010 %o A107308 (PARI) is(n)=isprime((29*n-31)) \\ _Charles R Greathouse IV_, Jun 12 2017 %Y A107308 Cf. A142003 (the resulting primes). %K A107308 nonn,easy %O A107308 1,1 %A A107308 _Parthasarathy Nambi_, May 20 2005