a(n) = 10*n + 8.

Terms

a(0) =8a(1) =18a(2) =28a(3) =38a(4) =48a(5) =58a(6) =68a(7) =78a(8) =88a(9) =98a(10) =108a(11) =118a(12) =128a(13) =138a(14) =148a(15) =158a(16) =168a(17) =178a(18) =188a(19) =198a(20) =208a(21) =218a(22) =228a(23) =238a(24) =248a(25) =258a(26) =268a(27) =278a(28) =288a(29) =298