%I #2 Mar 30 2012 16:51:01

%S 10,13,6,12,112,11114,1733,270,12223,7128,11122225,33991010,13913661,

%T 2107998,12222775,33910130,131212367,56113213,6837229,4201627,266366,

%U 112430,131359,7981,969,278,134,119,47,15,23,9,22,15

%N Trajectory of 10 under iteration of the map k -> A087712(k).

%C 33 steps to see a repeat.

%Y Cf. A087712, A098282.

%K nonn

%O 0,1

%A _N. J. A. Sloane_, Feb 18 2009