%I #4 Nov 04 2013 13:01:50
%S 10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,30,31,32,33,40,41,42,50,
%T 51,52,60,61,62,70,71,72,80,81,82,90,91,92,100,101,102,103,104,105,
%U 106,107,108,109,110,111,112,113,114,115,116,117,118,119,120,121,122,123,124,125
%N Numbers n such that powertrain(n) < n.
%C Numbers n such that A133500(n) < n.
%K nonn,base
%O 1,1
%A _J. H. Conway_ and _N. J. A. Sloane_, Dec 03 2007