%I #10 Aug 12 2015 08:26:52
%S 0,1,2,3,4,5,6,7,8,10,11,12,13,14,15,16,17,20,21,22,23,24,25,26,30,31,
%T 32,33,34,35,40,41,42,43
%N Duplicate of A023751.
%K dead
%O 1,3
