%I #27 Jul 07 2015 08:02:18
%S 31,223,439,1399,2383,2767,3343,3463,3607,4567,6079,7927,8167,8287,
%T 8719,10159,10663,11959,14503,15559,15727,17383,18223,19087,20743,
%U 21487,21559,24007,25639,26647,27103,27583,28807,28879,29167,29599,31183,32359,33343
%N Primes of the form 6*p + 1 with p prime that are also of the form x^2 + 27*y^2 and congruent to 7 mod 24.
%C a(n) divides 2^m - 1, where m = (a(n) - 7)/6 + 1.
%F A014752 INTERSECT A051644 INTERSECT A107006.
%Y Subsequence of A122094.
%Y Cf. A014752, A051644, A107006.
%K nonn
%O 1,1
%A _Arkadiusz Wesolowski_, Jun 01 2015