%I #2 Jan 09 2009 03:00:00

%S 0,1,1,2,2,3,2,3,4,3,4,3,5,4,5,4,6,5,4,6,5,7,6,5,7,6,5,8,7,6,8,7,6,9,8

%N Duplicate of A069352.

%K dead

%O 1,4