Search: id:A097155
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%I A097155
%S A097155 89,890,998,2125,3126,5207,6207,7018,7019,8099,8900,9098,9899,9980,
%T A097155 10151,1015,2,10224,12205,12259,12268,14085,14086,15095,15096,17972,
%U A097155 18971,21250,22015,2226,9,23077,24005,24086,24087,25096,26963,27962
%N A097155 Numbers that reach the fixed point 89 under iteration of f(x) = reverse(x) 
               - maxdigit(x).
%C A097155 89 is the first number that will not reach zero under iteration of f(x) 
               = reverse(x) - maxdigit(x), since 98-9=89. It is conjectured that 
               0 and 89 are the only fixed points of f.
%e A097155 a(5)=3126 because 3126 -> 6207 -> 7019 -> 9098 -> 8900 -> 89.
%Y A097155 Cf. A097153, A097154, A097156, A097157, A097158.
%Y A097155 Sequence in context: A069764 A053580 A103548 this_sequence A158716 A093289 
               A103545
%Y A097155 Adjacent sequences: A097152 A097153 A097154 this_sequence A097156 A097157 
               A097158
%K A097155 base,easy,nonn
%O A097155 1,1
%A A097155 Jason Earls (zevi_35711(AT)yahoo.com), Aug 01 2004

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