Numbers n such that the n-th Lucas number is prime and can be written in the form a^2 + 2*b^2.

Terms

a(0) =0a(1) =4a(2) =5a(3) =11a(4) =13a(5) =16a(6) =17a(7) =37a(8) =41a(9) =47a(10) =53a(11) =61a(12) =71a(13) =113a(14) =313a(15) =353a(16) =503a(17) =613a(18) =617a(19) =863a(20) =1097a(21) =1361a(22) =4787a(23) =4793a(24) =7741a(25) =10691a(26) =12251a(27) =14449a(28) =19469a(29) =35449