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 A024905 #30 Sep 08 2022 08:44:48 %S A024905 4,6,10,16,18,28,30,34,40,48,54,60,64,66,70,78,88,90,94,96,100,106, %T A024905 108,118,126,130,136,138,144,150,156,166,184,186,196,204,210,214,226, %U A024905 228,238,244,246,268,276,286,288,298,304,306,316,324,328,330,334,340,346,348,360,364 %N A024905 Numbers k such that 7*k + 1 is prime. %H A024905 Vincenzo Librandi, <a href="/A024905/b024905.txt">Table of n, a(n) for n = 1..1000</a> %p A024905 select(k->isprime(7*k+1),[$1..370]); # _Muniru A Asiru_, Jul 15 2018 %t A024905 Select[Range[400], PrimeQ[7 # + 1] &] (* _Vladimir Joseph Stephan Orlovsky_, Feb 25 2011 *) %o A024905 (Magma) [n: n in [1..10000] | IsPrime(7*n+1)]; // _Vincenzo Librandi_, Nov 20 2010 %o A024905 (PARI) is(n)=isprime(7*n+1) \\ _Charles R Greathouse IV_, Feb 20 2017 %Y A024905 Associated primes are contained in A045465. %K A024905 nonn,easy %O A024905 1,1 %A A024905 _Clark Kimberling_