a(n) = 1 + 3*A034782(n).

Terms

a(0) =73a(1) =97a(2) =103a(3) =193a(4) =229a(5) =241a(6) =277a(7) =283a(8) =313a(9) =331a(10) =367a(11) =373a(12) =397a(13) =433a(14) =457a(15) =463a(16) =547a(17) =607a(18) =619a(19) =643a(20) =661a(21) =709a(22) =727a(23) =733a(24) =739a(25) =757a(26) =823a(27) =859a(28) =883a(29) =907