Numbers that reach the fixed point 89 under iteration of f(x) = reverse(x) - maxdigit(x).

Terms

a(0) =89a(1) =890a(2) =998a(3) =2125a(4) =3126a(5) =5207a(6) =6207a(7) =7018a(8) =7019a(9) =8099a(10) =8900a(11) =9098a(12) =9899a(13) =9980a(14) =10151a(15) =10152a(16) =10224a(17) =12205a(18) =12259a(19) =12268a(20) =14085a(21) =14086a(22) =15095a(23) =15096a(24) =17972a(25) =18971a(26) =21250a(27) =22015a(28) =22269a(29) =23077