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 A188459 #21 Sep 27 2022 07:54:58 %S A188459 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,20,22,23,25,26,27,29,30, %T A188459 31,32,34,35,36,37,38,40,41,42,43,44,45,47,48,49,50,51,52,53,55,56,57, %U A188459 58,59,64,66,68,69,70,71,74,76,77,78,79,80,83,87,88,89,90,91,92,94,97,98,99,102,106,107,108,113,114 %N A188459 Numbers k such that 4*k^2 + 4*k + 653 is a prime. %H A188459 Vincenzo Librandi, <a href="/A188459/b188459.txt">Table of n, a(n) for n = 1..1001</a> [Offset shifted by _Georg Fischer_, Sep 27 2022] %t A188459 Select[Range[0,150],PrimeQ[4#^2+4#+653]&] (* _Harvey P. Dale_, Apr 02 2011 *) %o A188459 (Magma) [n: n in [0..250] | IsPrime(4*n^2+4*n+653)]; // _Vincenzo Librandi_, Apr 01 2011 %Y A188459 Cf. A145202 (the corresponding primes). %K A188459 nonn,easy %O A188459 1,3 %A A188459 _Vincenzo Librandi_, Apr 01 2011 %E A188459 Offset changed to 1 by _Georg Fischer_, Sep 27 2022