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 A163624 #18 Sep 08 2022 08:45:46 %S A163624 2,5,10,11,15,18,19,21,25,26,28,35,37,38,40,44,46,47,49,51,53,54,57, %T A163624 58,61,63,64,68,71,72,73,75,77,80,81,86,93,102,105,106,107,112,114, %U A163624 116,119,120,126,127,128,130,138,141,142,145,148,149,151,154,159,162,164,165 %N A163624 Numbers n such that 120n+1 is prime. %H A163624 Vincenzo Librandi, <a href="/A163624/b163624.txt">Table of n, a(n) for n = 1..1000</a> %F A163624 a(n) = (A163623(n)-1)/120. %t A163624 Select[Range[200], PrimeQ[120 # + 1] &] (* _Harvey P. Dale_, May 29 2013 *) %o A163624 (Magma) [n: n in [0..250]|IsPrime(120*n+1)]; // _Vincenzo Librandi_, Dec 13 2010 %o A163624 (PARI) is(n)=isprime(120*n+1) \\ _Charles R Greathouse IV_, Feb 20 2017 %Y A163624 Cf. A163623. %K A163624 nonn,easy %O A163624 1,1 %A A163624 _Zak Seidov_, Aug 01 2009