Numbers which are either a divisor or a multiple of their 9's complement.

Terms

a(0) =1a(1) =3a(2) =6a(3) =8a(4) =9a(5) =11a(6) =33a(7) =66a(8) =88a(9) =90a(10) =96a(11) =98a(12) =99a(13) =111a(14) =333a(15) =666a(16) =888a(17) =962a(18) =972a(19) =990a(20) =996a(21) =998a(22) =999a(23) =1111a(24) =3333a(25) =6666a(26) =8888a(27) =9090a(28) =9696a(29) =9898