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A154606
Numbers n with the property of the enumerated trees without the convex hull.
0
1, 3, 9, 43, 239
OFFSET
1,2
CROSSREFS
Sequence in context: A377062 A275781 A199140 * A369387 A232216 A167143
KEYWORD
nonn,uned,obsc
AUTHOR
Nishant Doshi (doshinikki2004(AT)gmail.com), Jan 13 2009
EXTENSIONS
This sequence needs a better definition. - N. J. A. Sloane, Jan 14 2009
STATUS
approved