Numbers k such that k^2 - k - 1 is prime.

Terms

a(0) =3a(1) =4a(2) =5a(3) =6a(4) =7a(5) =9a(6) =10a(7) =11a(8) =12a(9) =14a(10) =16a(11) =17a(12) =20a(13) =21a(14) =22a(15) =25a(16) =27a(17) =29a(18) =31a(19) =32a(20) =36a(21) =39a(22) =40a(23) =42a(24) =45a(25) =46a(26) =47a(27) =49a(28) =51a(29) =54