Numbers k such that L(2*k + 1) is prime, where L(m) is a Lucas number.

Terms

a(0) =2a(1) =3a(2) =5a(3) =6a(4) =8a(5) =9a(6) =15a(7) =18a(8) =20a(9) =23a(10) =26a(11) =30a(12) =35a(13) =39a(14) =56a(15) =156a(16) =176a(17) =251a(18) =306a(19) =308a(20) =431a(21) =548a(22) =680a(23) =2393a(24) =2396a(25) =2925a(26) =3870a(27) =4233a(28) =5345a(29) =6125