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 A106015 #16 Sep 08 2022 08:45:17
%S A106015 2,5,11,19,59,89,109,149,151,331,359,389,401,439,499,521,571,599,829,
%T A106015 941,1019,1039,1129,1249,1279,1319,1381,1451,1669,1741,1871,2131,2161,
%U A106015 2179,2251,2459,2819,3119,3251,3469,3539,3581,3659,3911,4001,4231,4261
%N A106015 Primes p such that 4*p +- 3 are primes.
%H A106015 Harvey P. Dale, <a href="/A106015/b106015.txt">Table of n, a(n) for n = 1..1000</a>
%F A106015 A023213 INTERSECT A157978. - _R. J. Mathar_, Jul 25 2009
%t A106015 Select[Prime[Range[400]], PrimeQ[4#+3]&&PrimeQ[4#-3]&]
%t A106015 Select[Prime[Range[600]],AllTrue[4#+{3,-3},PrimeQ]&] (* Requires Mathematica version 10 or later *) (* _Harvey P. Dale_, Feb 18 2021 *)
%o A106015 (Magma) [p: p in PrimesUpTo(100000)| IsPrime(4*p-3) and IsPrime(4*p+3)]; // _Vincenzo Librandi_, Nov 13 2010
%K A106015 nonn
%O A106015 1,1
%A A106015 _Zak Seidov_, May 05 2005