Indices of prime Lucas 6-step numbers, A074584.

Terms

a(0) =2a(1) =3a(2) =5a(3) =8a(4) =11a(5) =32a(6) =37a(7) =46a(8) =123a(9) =237a(10) =332a(11) =408a(12) =772a(13) =827a(14) =1523a(15) =5610a(16) =11273a(17) =14505