%I #2 May 01 2013 21:02:10
%S 1,3,9,43,239
%N Numbers n with the property of the enumerated trees without the convex hull.
%K nonn,uned,obsc
%O 1,2
%A Nishant Doshi (doshinikki2004(AT)gmail.com), Jan 13 2009
%E This sequence needs a better definition. - _N. J. A. Sloane_, Jan 14 2009
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