Positive integers k such that 6*k - 1 is prime.

Terms

a(0) =1a(1) =2a(2) =3a(3) =4a(4) =5a(5) =7a(6) =8a(7) =9a(8) =10a(9) =12a(10) =14a(11) =15a(12) =17a(13) =18a(14) =19a(15) =22a(16) =23a(17) =25a(18) =28a(19) =29a(20) =30a(21) =32a(22) =33a(23) =38a(24) =39a(25) =40a(26) =42a(27) =43a(28) =44a(29) =45