a(n) = 7n + 2.

Terms

a(0) =2a(1) =9a(2) =16a(3) =23a(4) =30a(5) =37a(6) =44a(7) =51a(8) =58a(9) =65a(10) =72a(11) =79a(12) =86a(13) =93a(14) =100a(15) =107a(16) =114a(17) =121a(18) =128a(19) =135a(20) =142a(21) =149a(22) =156a(23) =163a(24) =170a(25) =177a(26) =184a(27) =191a(28) =198a(29) =205