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 A120345 #10 Sep 08 2022 08:45:25 %S A120345 6,14,24,26,38,50,90,104,108,110,126,164,174,176,180,188,206,230,234, %T A120345 236,264,266,296,306,314,320,344,350,386,390,404,408,440,470,476,488, %U A120345 498,516,518,534,548,570,608,618,630,636,638,680,684,698,708,716,720 %N A120345 Numbers n such that 2357*n + 1 is prime. %e A120345 If n=110 then 2357*n + 1 = 259271 (prime). %t A120345 Select[Range[1000], PrimeQ[2357*# + 1] &] (* _Stefan Steinerberger_, Jul 22 2006 *) %o A120345 (Magma) [ n: n in [0..1500] | IsPrime(2357*n + 1) ] // _Vincenzo Librandi_, Jan 31 2011 %o A120345 (PARI) is(n)=isprime(2357*n+1) \\ _Charles R Greathouse IV_, Jun 13 2017 %K A120345 nonn,less,easy %O A120345 1,1 %A A120345 _Parthasarathy Nambi_, Jun 24 2006 %E A120345 More terms from _Stefan Steinerberger_, Jul 22 2006