RootDegree on OrderedTree
The number of children of the root.
Called as CombinatorialStat(x, "RootDegree"). The head's page has its examples.
Live
Distribution
Over OrderedTrees at each size, tallied here in your browser; sizes past 6 are not offered.
FindStat St000084
The number of subtrees.
| Object | Value |
|---|---|
[[]] | 1 |
[[[]]] | 1 |
[[],[]] | 2 |
[[[[]]]] | 1 |
[[[],[]]] | 1 |
[[[]],[]] | 2 |
[[],[[]]] | 2 |
[[[[[]]]]] | 1 |
Data from FindStat, the combinatorial statistic finder; the page at findstat.org/St000084 has the rest.