Numbers that look the same when printed upside down.

Terms

a(0) =0a(1) =8a(2) =69a(3) =88a(4) =96a(5) =609a(6) =689a(7) =808a(8) =888a(9) =906a(10) =986a(11) =6009a(12) =6699a(13) =6889a(14) =6969a(15) =8008a(16) =8698a(17) =8888a(18) =8968a(19) =9006a(20) =9696a(21) =9886a(22) =9966a(23) =60009a(24) =60809a(25) =66099a(26) =66899a(27) =68089a(28) =68889a(29) =69069