%I #7 Mar 19 2014 19:48:04

%S 0,10,100,110,200,210,1000,1010,1100,1110,1200,1210,2000,2010,2100,

%T 2110,2200,2210,3000,3010,3100,3110,3200,3210,10000,10010,10100,10110,

%U 10200,10210,11000,11010,11100,11110,11200,11210,12000,12010,12100,12110,12200

%N 10 times A007623.

%H Wikipedia, <a href="http://en.wikipedia.org/wiki/Factoradic">Factorial base</a>

%K nonn

%O 0,2

%A _N. J. A. Sloane_, following a suggestion from Jonathan Vos Post, Dec 15 2006