a(n) = 8*n + 2.

Terms

a(0) =2a(1) =10a(2) =18a(3) =26a(4) =34a(5) =42a(6) =50a(7) =58a(8) =66a(9) =74a(10) =82a(11) =90a(12) =98a(13) =106a(14) =114a(15) =122a(16) =130a(17) =138a(18) =146a(19) =154a(20) =162a(21) =170a(22) =178a(23) =186a(24) =194a(25) =202a(26) =210a(27) =218a(28) =226a(29) =234