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 A083022 #13 Sep 08 2022 08:45:10 %S A083022 2,4,5,7,10,13,16,17,20,22,23,29,32,34,40,43,44,46,49,55,56,59,62,64, %T A083022 68,70,71,73,82,86,95,97,101,103,104,109,110,125,127,133,134,148,149, %U A083022 152,155,160,161,163,164,166,170,175,178,181,185,208,209,218,220 %N A083022 Numbers n such that 4*n^2 - 3 is prime. %H A083022 Vincenzo Librandi, <a href="/A083022/b083022.txt">Table of n, a(n) for n = 1..1000</a> %F A083022 a(n) = A028873(n)/2. %t A083022 Select[Range[300], PrimeQ[4 #^2 - 3] &] (* _Vincenzo Librandi_, Oct 05 2012 *) %o A083022 (Magma) [n: n in [1..300] | IsPrime(4*n^2 - 3)]; // _Vincenzo Librandi_, Oct 05 2012 %o A083022 (PARI) is(n)=isprime(4*n^2-3) \\ _Charles R Greathouse IV_, May 22 2017 %Y A083022 Cf. A028874. %K A083022 nonn,easy %O A083022 1,1 %A A083022 _Hugo Pfoertner_, May 31 2003