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 A155943 #14 Feb 03 2024 00:53:15 %S A155943 7,37,61,97,151,163,181,193,271,313,331,337,397,421,487,523,547,571, %T A155943 643,691,727,757,853,877,967,1033,1087,1093,1231,1237,1297,1303,1423, %U A155943 1471,1567,1657,1747,1777,1801,1831,1867,1987,2083,2113,2221,2251,2281,2437 %N A155943 Primes p such that 16*p + 1 is also prime. %H A155943 Vincenzo Librandi, <a href="/A155943/b155943.txt">Table of n, a(n) for n = 1..1000</a> %t A155943 Select[Prime[Range[2500]], PrimeQ[(16*# + 1)]&] (* _Vincenzo Librandi_, Oct 30 2012 *) %o A155943 (Magma) [p: p in PrimesUpTo(2500)| IsPrime(16*p + 1)]; // _Vincenzo Librandi_, Oct 30 2012 %Y A155943 Cf. A094407, A155942, A155941. %K A155943 nonn,easy %O A155943 1,1 %A A155943 _Vincenzo Librandi_, Jan 31 2009