2,1
This maximum number is achieved by the 'good' binary trees defined in the paper.
L. A. Szekely and Hua Wang, On Subtrees of Trees
L. A. Szekely and Hua Wang, Binary trees with the largest number of subtrees
Sequence in context: A136983 A119074 A163696 * A018743 A077279 A196190
Adjacent sequences: A092778 A092779 A092780 * A092782 A092783 A092784
nonn
Hua Wang (wren1107(AT)yahoo.com.cn), Apr 23 2004