Numbers n such that the n-th Lucas number is prime and can be written in the form a^2 + 10*b^2.

A216575

Numbers n such that the n-th Lucas number is prime and can be written in the form a^2 + 10*b^2.

Terms

    a(0) =5a(1) =13a(2) =17a(3) =37a(4) =41a(5) =53a(6) =61a(7) =113a(8) =313a(9) =353a(10) =613a(11) =617a(12) =1097a(13) =1361a(14) =4793a(15) =7741a(16) =14449a(17) =19469a(18) =35449a(19) =51169a(20) =89849a(21) =140057a(22) =159521a(23) =183089a(24) =193201a(25) =344293a(26) =387433a(27) =443609a(28) =532277a(29) =631181

External references