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A120345 Numbers n such that 2357*n + 1 is prime. 1

%I #10 Sep 08 2022 08:45:25

%S 6,14,24,26,38,50,90,104,108,110,126,164,174,176,180,188,206,230,234,

%T 236,264,266,296,306,314,320,344,350,386,390,404,408,440,470,476,488,

%U 498,516,518,534,548,570,608,618,630,636,638,680,684,698,708,716,720

%N Numbers n such that 2357*n + 1 is prime.

%e If n=110 then 2357*n + 1 = 259271 (prime).

%t Select[Range[1000], PrimeQ[2357*# + 1] &] (* _Stefan Steinerberger_, Jul 22 2006 *)

%o (Magma) [ n: n in [0..1500] | IsPrime(2357*n + 1) ] // _Vincenzo Librandi_, Jan 31 2011

%o (PARI) is(n)=isprime(2357*n+1) \\ _Charles R Greathouse IV_, Jun 13 2017

%K nonn,less,easy

%O 1,1

%A _Parthasarathy Nambi_, Jun 24 2006

%E More terms from _Stefan Steinerberger_, Jul 22 2006

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Last modified April 17 22:23 EDT 2024. Contains 371767 sequences. (Running on oeis4.)