Numbers in which every digit contains at least one loop (version 1).

Terms

a(0) =0a(1) =6a(2) =8a(3) =9a(4) =60a(5) =66a(6) =68a(7) =69a(8) =80a(9) =86a(10) =88a(11) =89a(12) =90a(13) =96a(14) =98a(15) =99a(16) =600a(17) =606a(18) =608a(19) =609a(20) =660a(21) =666a(22) =668a(23) =669a(24) =680a(25) =686a(26) =688a(27) =689a(28) =690a(29) =696