Numbers whose base-8 representation is the juxtaposition of two identical strings.

Terms

a(0) =9a(1) =18a(2) =27a(3) =36a(4) =45a(5) =54a(6) =63a(7) =520a(8) =585a(9) =650a(10) =715a(11) =780a(12) =845a(13) =910a(14) =975a(15) =1040a(16) =1105a(17) =1170a(18) =1235a(19) =1300a(20) =1365a(21) =1430a(22) =1495a(23) =1560a(24) =1625a(25) =1690a(26) =1755a(27) =1820a(28) =1885a(29) =1950