Numbers having period-2 6-digitized sequences.

Terms

a(0) =3468a(1) =3486a(2) =3648a(3) =3684a(4) =3846a(5) =3864a(6) =4368a(7) =4386a(8) =4638a(9) =4683a(10) =4836a(11) =4863a(12) =5579a(13) =5597a(14) =5759a(15) =5795a(16) =5957a(17) =5975a(18) =6348a(19) =6384a(20) =6438a(21) =6483a(22) =6834a(23) =6843a(24) =7559a(25) =7595a(26) =7955a(27) =8346a(28) =8364a(29) =8436