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 A186815 #11 Sep 08 2022 08:45:56 %S A186815 9,21,27,39,51,69,81,87,99,117,129,147,153,171,177,183,207,219,249, %T A186815 261,309,333,351,363,387,393,399,429,441,447,459,471,477,483,519,537, %U A186815 561,597,609,621,633,639,651,663,687,711,717,723,741,753,777,807,849 %N A186815 Numbers n such that n^2-10 is a prime. %H A186815 Vincenzo Librandi, <a href="/A186815/b186815.txt">Table of n, a(n) for n = 1..1000</a> %e A186815 9^2-10=71 prime. %t A186815 Select[Range[4,1200],PrimeQ[#^2-10]&] %o A186815 (Magma) [n: n in [1..1000] | IsPrime(n^2-10)]; // _Vincenzo Librandi_, Jul 10 2016 %Y A186815 Cf. A090696, A114273. %K A186815 nonn,easy %O A186815 1,1 %A A186815 _Vladimir Joseph Stephan Orlovsky_, Feb 27 2011