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 A156252 #17 Sep 08 2022 08:45:41
%S A156252 43,53,71,97,131,173,223,281,347,421,503,593,691,797,911,1033,1163,
%T A156252 1301,1447,1601,1933,2111,2297,2693,2903,3121,3347,3581,3823,4073,
%U A156252 4597,4871,5153,5443,5741,6047,6361,7013,7351,8783,9161,9547,9941,10343,10753
%N A156252 Primes of the form 4*n^2+6*n+43.
%C A156252 4*n^2+6*n+43 is a prime number for all n up to 19.
%C A156252 Subsequence of A005846. (Substitute n=2k+1 in the definition of A005846 to show this.) [_R. J. Mathar_, Feb 19 2009]
%H A156252 Vincenzo Librandi, <a href="/A156252/b156252.txt">Table of n, a(n) for n = 1..1000</a>
%H A156252 Vincenzo Librandi, <a href="http://mathforum.org/kb/message.jspa?messageID=310692">Prime Generating Polynomials</a>.
%t A156252 Select[Table[4*n^2+6*n+43,{n,0,700}],PrimeQ] (* _Vincenzo Librandi_, Jul 26 2012 *)
%o A156252 (Magma) [a: n in [0..100] | IsPrime(a) where a is 4*n^2+6*n+43 ]; // _Vincenzo Librandi_, Jul 26 2012
%K A156252 nonn,easy
%O A156252 1,1
%A A156252 _Vincenzo Librandi_, Feb 07 2009