Numbers k such that Lucas(2k)/3 is prime.

Terms

a(0) =5a(1) =7a(2) =13a(3) =19a(4) =31a(5) =43a(6) =89a(7) =101a(8) =229a(9) =293a(10) =457a(11) =541a(12) =653a(13) =659a(14) =1553a(15) =2003a(16) =2707a(17) =2749a(18) =7159a(19) =10289a(20) =26267a(21) =59581a(22) =63421a(23) =80911