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 A243450 #9 Nov 06 2024 08:44:29
%S A243450 19,31,79,211,271,499,691,1039,1171,1459,1951,2131,2719,4111,4639,
%T A243450 5791,7411,7759,9619,10831,11251,15391,17971,24979,29599,31699,33871,
%U A243450 38431,40819,42451,44959,55711,56659,58579,61519,65551,68659,73999,80671,87631,88819
%N A243450 Primes of the form n^2 + 15.
%H A243450 Vincenzo Librandi, <a href="/A243450/b243450.txt">Table of n, a(n) for n = 1..1000</a>
%F A243450 a(n) >> n^2 log n. - _Charles R Greathouse IV_, Nov 06 2024
%t A243450 Select[Table[n^2 + 15, {n, 0, 1000}], PrimeQ]
%o A243450 (Magma) [a: n in [0..1000] | IsPrime(a) where a is n^2+15];
%o A243450 (PARI) list(lim)=my(v=List(),t); forstep(k=2,sqrtint(lim\1-15),2, if(isprime(t=k^2+15), listput(v,t))); Vec(v) \\ _Charles R Greathouse IV_, Nov 06 2024
%Y A243450 Cf. A121982 (associated n).
%Y A243450 Cf. similar sequences listed in A243449.
%K A243450 nonn,easy
%O A243450 1,1
%A A243450 _Vincenzo Librandi_, Jun 05 2014