%I #13 Sep 08 2022 08:46:19
%S 7,17,31,41,79,89,103,113,127,137,151,199,223,233,257,271,281,353,367,
%T 401,439,449,463,487,521,569,593,607,617,631,641,727,751,761,809,823,
%U 857,881,919,929,953,967,977,991,1039,1049,1063,1087,1097,1193,1217,1231
%N Primes congruent to {7, 17} mod 24.
%C All these primes do not divide any number of the form 3*2^k - 1. Therefore, they are not in A001915.
%F A107006 UNION A107181.
%t Select[Prime@Range[202], MemberQ[{7, 17}, Mod[#, 24]] &]
%o (Magma) [p: p in PrimesUpTo(1231) | p mod 24 in {7, 17}];
%Y Cf. A001915, A107006, A107181.
%K nonn
%O 1,1
%A _Arkadiusz Wesolowski_, Aug 03 2017