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 A158016 #18 Oct 05 2024 21:37:57 %S A158016 3,13,19,61,79,103,163,181,193,223,229,313,331,349,409,433,439,541, %T A158016 571,613,619,691,751,769,853,859,919,991,1021,1033,1039,1321,1381, %U A158016 1423,1483,1543,1549,1621,1699,1759,1801,1861,1873,1879,1951,1999,2011,2029,2113 %N A158016 Primes p such that 8*p-1 is also prime. %H A158016 Vincenzo Librandi, <a href="/A158016/b158016.txt">Table of n, a(n) for n = 1..1000</a> %t A158016 Select[Prime[Range[600]], PrimeQ[(8 # - 1)]&] (* _Vincenzo Librandi_, Apr 14 2013 *) %o A158016 (Magma) [p: p in PrimesUpTo(2200) | IsPrime(8*p - 1)]; // _Vincenzo Librandi_, Apr 14 2013 %Y A158016 Cf. A005382 for the type 2p-1, A062737 for 4p-1, A158015 for 6p-1, A158017 for 10p-1. %K A158016 nonn,easy %O A158016 1,1 %A A158016 _Roger L. Bagula_, Mar 11 2009 %E A158016 Edited by the Associate Editors of the OEIS, Apr 22 2009