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 A086174 #12 Sep 08 2022 08:45:11 %S A086174 3,29,33,45,65,81,91,93,95,101,103,105,109,123,153,155,189,201,225, %T A086174 251,253,273,283,291,305,321,363,367,371,375,387,429,431,469,475,501, %U A086174 515,517,525,541,567,601,613,627,633,643,669,675,701,715,717,723,729,735 %N A086174 Numbers n such that n*prime(n)+2 is a prime. %C A086174 See also A086172, A086173, A086175, A086176, A086177. %H A086174 Vincenzo Librandi, <a href="/A086174/b086174.txt">Table of n, a(n) for n = 1..1000</a> %t A086174 Select[Range[1000], PrimeQ[ # Prime[ # ]+2]&] %o A086174 (Magma) [n: n in [1..800] | IsPrime(n*NthPrime(n) + 2)]; // _Vincenzo Librandi_, Oct 05 2012 %Y A086174 Cf. A086172, A086173, A086175, A086176, A086177. %K A086174 easy,nonn %O A086174 1,1 %A A086174 _Zak Seidov_, Jul 11 2003