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 A199368 #16 Sep 08 2022 08:46:00 %S A199368 2,14,16,22,25,29,49,64,74,77,86,91,112,121,127,134,137,140,151,161, %T A199368 179,197,214,221,226,254,259,284,287,296,302,305,310,347,361,364,365, %U A199368 380,382,392,394,401,406,407,415,469,497 %N A199368 Numbers k such that 4k^3 - 3 is prime. %C A199368 See comment in A199307. %H A199368 Vincenzo Librandi, <a href="/A199368/b199368.txt">Table of n, a(n) for n = 1..1000</a> %t A199368 Select[Range[600], PrimeQ[4#^3 - 3]&] (* _Vincenzo Librandi_, Jan 07 2013 *) %o A199368 (Magma) [n: n in [1..500] | IsPrime(4*n^3-3)]; // _Vincenzo Librandi_, Jan 07 2013 %o A199368 (PARI) is(n)=isprime(4*n^3-3) \\ _Charles R Greathouse IV_, May 22 2017 %Y A199368 Cf. A199307, A199369. %K A199368 nonn,easy %O A199368 1,1 %A A199368 _N. J. A. Sloane_, Nov 05 2011