Numbers k such that 5*k + 1 is prime.

Terms

a(0) =2a(1) =6a(2) =8a(3) =12a(4) =14a(5) =20a(6) =26a(7) =30a(8) =36a(9) =38a(10) =42a(11) =48a(12) =50a(13) =54a(14) =56a(15) =62a(16) =66a(17) =80a(18) =84a(19) =86a(20) =92a(21) =98a(22) =104a(23) =108a(24) =114a(25) =120a(26) =126a(27) =128a(28) =132a(29) =138