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 A153218 #26 Feb 03 2024 00:52:47 %S A153218 0,1,2,4,5,6,9,10,11,12,15,16,17,20,22,24,25,26,29,31,32,34,36,37,39, %T A153218 44,45,46,50,51,54,55,57,60,61,62,65,67,69,71,72,75,76,80,82,86,89,90, %U A153218 94,95,99,100,101,102,104,106,109,111,114,117,120,121,122,124,125,127,130 %N A153218 Numbers k such that 6k + 7 is prime. %C A153218 One less than the associated term in A024899. - _R. J. Mathar_, Jan 05 2011 %H A153218 Vincenzo Librandi, <a href="/A153218/b153218.txt">Table of n, a(n) for n = 1..1000</a> %t A153218 Select[Range[0, 150], PrimeQ[6# + 7] &] (* _Vincenzo Librandi_, Sep 24 2012 *) %o A153218 (Magma) [n: n in [0..150] | IsPrime(6*n + 7)]; // _Vincenzo Librandi_, Sep 24 2012 %o A153218 (PARI) is(n)=isprime(6*n+7) \\ _Charles R Greathouse IV_, Sep 24 2012 %Y A153218 Cf. A153219. %K A153218 nonn,easy %O A153218 1,3 %A A153218 _Vincenzo Librandi_, Dec 21 2008