Numbers k such that 6*k + 1 is prime.

Terms

a(0) =1a(1) =2a(2) =3a(3) =5a(4) =6a(5) =7a(6) =10a(7) =11a(8) =12a(9) =13a(10) =16a(11) =17a(12) =18a(13) =21a(14) =23a(15) =25a(16) =26a(17) =27a(18) =30a(19) =32a(20) =33a(21) =35a(22) =37a(23) =38a(24) =40a(25) =45a(26) =46a(27) =47a(28) =51a(29) =52