A141876 - OEIS

%I #12 Sep 08 2022 08:45:35

%S 11,163,239,277,353,467,619,733,809,1151,1303,1493,1531,1607,1721,

%T 1759,1873,1949,1987,2063,2557,2633,2671,2861,3089,3203,3469,3583,

%U 3659,3697,4001,4153,4229,4457,4723,4799,4951,5179,5407,5483,5521,5711,5749,5939

%N Primes congruent to 11 mod 19.

%H Vincenzo Librandi, <a href="/A141876/b141876.txt">Table of n, a(n) for n = 1..1000</a>

%F a(n) ~ 18n log n. - _Charles R Greathouse IV_, Jul 03 2016

%t Select[Range[11,5000,19],PrimeQ[#]&] (* _Vladimir Joseph Stephan Orlovsky_, Mar 31 2011*)

%o (Magma) [p: p in PrimesUpTo(7000) | p mod 19 eq 11 ]; // _Vincenzo Librandi_, Aug 15 2012

%o (PARI) is(n)=isprime(n) && n%19==11 \\ _Charles R Greathouse IV_, Jul 03 2016

%Y Cf. A000040.

%K nonn,easy

%O 1,1

%A _N. J. A. Sloane_, Jul 11 2008