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| NUMERICAL DIFFERENTIAL EQUATION ANALYSIS PACKAGE SYMBOL | Tutorials »|See Also »|More About » |
| ButcherBetaBar[tree] gives the number of ways of labeling tree with ButcherOrder[tree] distinct labels such that every vertex is labeled. |
 gives the number of ways of labeling n of the vertices of tree with n distinct labels such that every leaf is labeled. |
, you first need to load the Numerical Differential Equation Analysis Package using 
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