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Primes congruent to (11,17) mod 30.
1

%I #19 Sep 08 2022 08:46:19

%S 11,17,41,47,71,101,107,131,137,167,191,197,227,251,257,281,311,317,

%T 347,401,431,461,467,491,521,557,587,617,641,647,677,701,761,797,821,

%U 827,857,881,887,911,941,947,971,977,1031,1061,1091,1097,1151,1181,1187,1217,1277

%N Primes congruent to (11,17) mod 30.

%H Vincenzo Librandi, <a href="/A290530/b290530.txt">Table of n, a(n) for n = 1..1000</a>

%t Select[Prime@Range[210], MemberQ[{11, 17}, Mod[#, 30]] &]

%o (Magma) [p: p in PrimesUpTo(1500) | p mod 30 in [11,17]];

%Y Cf. A045372, A187058 (a subsequence).

%K nonn,easy

%O 1,1

%A _Vincenzo Librandi_, Aug 05 2017