Primes dividing numbers k such that k divides the k-th Lucas number A000032(k).

Terms

a(0) =2a(1) =3a(2) =107a(3) =1283a(4) =8747a(5) =21401a(6) =34667a(7) =46187a(8) =104003a(9) =137387a(10) =138563a(11) =374929a(12) =549547a(13) =2204243a(14) =2771281a(15) =2808107a(16) =11128427a(17) =11223683a(18) =13497443a(19) =14880347a(20) =21747529a(21) =22753547a(22) =23712683a(23) =33697283a(24) =44513387a(25) =46970929a(26) =57395627a(27) =65898683