%I #12 May 02 2013 13:09:55
%S 0,2,5,7,8,13,16,17,19,31,37,41,47,53,61,71,79,113,353,503,613,617,
%T 863,1097,1361,4793,5851,7741,8467,13963,19469,81671,89849,94823,
%U 140057,159521,183089,344293,443609,532277,574219,631181,637751,651821
%N Numbers n such that the n-th Lucas number is prime, but cannot be written in the form a^2 + 6*b^2.
%H Blair Kelly, <a href="http://mersennus.net/fibonacci">Factorizations of Fibonacci and Lucas numbers</a>
%Y Cf. A000032, A001606.
%K nonn
%O 1,2
%A _V. Raman_, Sep 08 2012