a(n) = 6*n + 2.

Terms

a(0) =2a(1) =8a(2) =14a(3) =20a(4) =26a(5) =32a(6) =38a(7) =44a(8) =50a(9) =56a(10) =62a(11) =68a(12) =74a(13) =80a(14) =86a(15) =92a(16) =98a(17) =104a(18) =110a(19) =116a(20) =122a(21) =128a(22) =134a(23) =140a(24) =146a(25) =152a(26) =158a(27) =164a(28) =170a(29) =176