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 A075747 #18 Sep 08 2022 08:45:07 %S A075747 0,1,3,4,6,7,8,9,14,15,18,19,20,22,26,28,30,32,33,36,41,42,44,45,46, %T A075747 47,52,56,57,58,62,64,66,67,70,72,75,77,79,81,84,86,87,90,96,99,100, %U A075747 101,103,105,106,108,109,110,111,112,113,114,123,125,127,129,131,132,133 %N A075747 Numbers n such that 210*n + 17 is prime. %H A075747 Vincenzo Librandi, <a href="/A075747/b075747.txt">Table of n, a(n) for n = 1..1000</a> %e A075747 n=1: 210*1 + 17 = 227 is prime. %t A075747 Select[Range[0, 500], PrimeQ[210*# + 17] &] (* _Vincenzo Librandi_, Oct 04 2012 *) %o A075747 (Magma) [n: n in [0..150]| IsPrime(210*n + 17)]; // _Vincenzo Librandi_, Oct 04 2012 %o A075747 (PARI) is(n)=isprime(210*n+17) \\ _Charles R Greathouse IV_, May 22 2017 %Y A075747 Cf. A140842. %K A075747 easy,nonn %O A075747 1,3 %A A075747 _Zak Seidov_, Oct 08 2002 %E A075747 0 inserted by _Ray Chandler_, Apr 30 2010