%I A124177
%S A124177 0,22,26,27,34,35,44,49,52,63,66,78,79,81,88,99,104,107,108,112,115,121,
%T A124177 126,133,134,143,144,151,156,165,178,187,211,224,229,232,233,283,290,
%U A124177 314,336,341,358,363,385,413,431,467,470,489,492,516,538,561,583,615
%N A124177 Consider the map f that sends n to n + (sum of even digits of n) - (sum 
               of odd digits of n). Sequences gives numbers n such that f^(k))n) 
               = n for some k.
%C A124177 Terms computed by Jongware
%H A124177 Eric Angelini (eric.angelini(AT)kntv.be), Dec 04 2006, <a href="b124177.txt">
               Table of n, a(n) for n = 1..182</a>
%H A124177 Eric Angelini, <a href="http://www.cetteadresecomportecinquantesignes.com/
               22.htm">Self-loopers</a>.
%e A124177 26 and 27 loop on themselves -- but 28 doesn't.
%e A124177 26 -> 34 -> 35 -> 27 -> 22 -> 26
%e A124177 27 -> 22 -> 26 -> 34 -> 35 -> 27
%e A124177 28 -> 38 -> 43 -> 44 -> 52 -> 49 -> 44
%Y A124177 Cf. A124176.
%Y A124177 Sequence in context: A070809 A108632 A045096 this_sequence A160078 A066059 
               A084891
%Y A124177 Adjacent sequences: A124174 A124175 A124176 this_sequence A124178 A124179 
               A124180
%K A124177 base,easy,nonn
%O A124177 1,2
%A A124177 Eric Angelini (eric.angelini(AT)kntv.be), Dec 04 2006