Omit digits 0, 1, 8 from n.

Terms

a(0) =2a(1) =3a(2) =4a(3) =5a(4) =6a(5) =7a(6) =9a(7) =2a(8) =3a(9) =4a(10) =5a(11) =6a(12) =7a(13) =9a(14) =2a(15) =2a(16) =22a(17) =23a(18) =24a(19) =25a(20) =26a(21) =27a(22) =2a(23) =29a(24) =3a(25) =3a(26) =32a(27) =33a(28) =34a(29) =35