A154606 Numbers n with the property of the enumerated trees without the convex hull.

1, 3, 9, 43, 239

Offset

1,2

Links

Table of n, a(n) for n=1..5.

Crossrefs

Sequence in context: A018427 A275781 A199140 * A369387 A232216 A167143

Adjacent sequences: A154603 A154604 A154605 * A154607 A154608 A154609

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