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A108969 Numbers n such that 43*n + 41 is prime. 0

%I #14 Sep 08 2022 08:45:19

%S 0,2,12,14,42,44,60,62,66,72,86,90,104,114,132,150,152,170,174,182,

%T 186,192,200,212,222,230,234,264,276,284,290,300,312,336,342,350,354,

%U 356,362,380,384,390,402,416,432,446,450,452,464,476,480,486,494,504,506

%N Numbers n such that 43*n + 41 is prime.

%C 41 and 43 are twin primes.

%e If n=0 then 43*n + 41 = 41 (prime).

%e If n=90 then 43*n + 41 = 3911 (prime).

%t Select[Range[0,510],PrimeQ[43#+41]&] (* _Harvey P. Dale_, Feb 27 2012 *)

%o (Magma) [n: n in [0..10000] |IsPrime(43*n + 41)] - _Vincenzo Librandi_, Nov 13 2010

%o (PARI) is(n)=isprime(43*n+41) \\ _Charles R Greathouse IV_, Jun 13 2017

%K nonn,easy

%O 1,2

%A _Parthasarathy Nambi_, Jul 30 2005

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