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Primes congruent to {2, 3, 5, 7} mod 19.
1

%I #8 Sep 08 2022 08:46:03

%S 2,3,5,7,41,43,59,79,83,97,157,173,193,197,211,233,269,271,307,311,

%T 347,349,383,401,421,439,461,463,499,577,613,653,691,727,743,839,857,

%U 877,881,919,953,971,991,1009,1031,1033,1069,1109,1123,1181,1223,1237

%N Primes congruent to {2, 3, 5, 7} mod 19.

%H Vincenzo Librandi, <a href="/A215157/b215157.txt">Table of n, a(n) for n = 1..1000</a>

%t Select[Prime[Range[600]],MemberQ[{2,3, 5, 7},Mod[#,19]]&]

%o (Magma) [ p: p in PrimesUpTo(2000) | p mod 19 in {2, 3, 5, 7} ];

%Y Cf. A000040, A167134.

%K nonn,easy

%O 1,1

%A _Vincenzo Librandi_, Aug 05 2012