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%I #14 May 02 2013 13:11:02
%S 0,2,5,7,8,11,16,17,19,37,41,47,53,71,79,113,353,503,617,863,1097,
%T 1361,4787,4793,8467,10691,12251,14449,19469,35449,36779,44507,51169,
%U 56003,81671,89849,94823,140057,148091,159521,183089,202667,443609,532277,574219,616787,631181,637751,651821,692147
%N Numbers n such that the n-th Lucas number is prime, but cannot be written in the form a^2 + 5*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
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