%I #1 May 16 2003 03:00:00
%S 220,221,1220,1221,2200,2201,2210,2211,10220,10221,11220,11221,12200,
%T 12201,12210,12211,22000,22001,22010,22011,22100,22101,22110,22111,
%U 22220,22221,23020,23021,33300,33301,33310,33311,100220,100221,101220
%N A064637 converted to factorial base.
%K nonn
%O 0,1
%A Antti Karttunen, Oct 03 2001