a(n) = n-th prime + n.

Terms

a(0) =3a(1) =5a(2) =8a(3) =11a(4) =16a(5) =19a(6) =24a(7) =27a(8) =32a(9) =39a(10) =42a(11) =49a(12) =54a(13) =57a(14) =62a(15) =69a(16) =76a(17) =79a(18) =86a(19) =91a(20) =94a(21) =101a(22) =106a(23) =113a(24) =122a(25) =127a(26) =130a(27) =135a(28) =138a(29) =143