OFFSET
0,1
LINKS
Gheorghe Coserea, Table of n, a(n) for n = 0..1024
Philippe Flajolet, Zhicheng Gao, Andrew M. Odlyzko, Bruce Richmond. The Distribution of heights of binary trees and other simple trees, Research Report RR-1749, INRIA, 1992.
Philippe Flajolet, Andrew M. Odlyzko. The average height of binary trees and other simple trees, Research Report RR-0056, INRIA, 1981.
EXAMPLE
0.2675612...
CROSSREFS
KEYWORD
nonn,cons
AUTHOR
Gheorghe Coserea, Dec 03 2015
STATUS
approved