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 A106091 #12 Sep 08 2022 08:45:17 %S A106091 5,11,13,17,23,31,43,53,61,71,73,97,107,131,167,173,181,211,227,277, %T A106091 307,337,383,463,503,557,601,643,701,727,811,827,877,887,907,911,937, %U A106091 941,997,1013,1031,1051,1091,1097,1193,1201,1223,1231,1277,1303,1361 %N A106091 Primes p such that 7*p + 12 and 12*p + 7 are primes. %H A106091 Michael De Vlieger, <a href="/A106091/b106091.txt">Table of n, a(n) for n = 1..10000</a> %t A106091 Select[Prime[Range[220]], PrimeQ[12#+7]&&PrimeQ[7#+12]&] %o A106091 (Magma) [p: p in PrimesUpTo(5000)|IsPrime(7*p+12) and IsPrime(12*p+7)] // _Vincenzo Librandi_, Jan 30 2011 %K A106091 nonn %O A106091 1,1 %A A106091 _Zak Seidov_, May 07 2005