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Numbers n such that 16n + 3 is prime.
7

%I #19 Sep 08 2022 08:45:13

%S 0,1,4,5,8,10,11,13,14,19,26,29,31,34,35,40,41,43,46,49,55,59,68,70,

%T 73,74,80,89,91,95,98,101,104,106,109,113,119,124,125,130,131,133,136,

%U 140,146,148,154,158,161,166,169,175,176,178,185,188,199,200,203,206,208

%N Numbers n such that 16n + 3 is prime.

%H Zak Seidov, <a href="/A092022/b092022.txt">Table of n, a(n) for n = 1..10000</a>

%F a(n) = (A091968(n)-3)/16. - _Zak Seidov_, Mar 28 2015

%t Select[Range[0, 208], PrimeQ[16# + 3] &] (* _Ray Chandler_, Mar 15 2004 *)

%o (Magma) [n: n in [0..300] |IsPrime(16*n+3)]; // _Vincenzo Librandi_, Mar 28 2015

%o (PARI) is(n)=isprime(16*n+3) \\ _Charles R Greathouse IV_, Feb 17 2017

%Y Cf. A091968, A093012.

%K nonn,easy

%O 1,3

%A _Ray Chandler_, Mar 15 2004