The following pages link to Über Unterbäume eines Baumes (Q2543811):
Displaying 5 items.
- The Riordan group (Q1182323) (← links)
- A short proof of an identity of Touchard's concerning Catalan numbers (Q1229870) (← links)
- Generalization of a formula of Touchard for Catalan numbers (Q1254999) (← links)
- A contect-free language and enumeration problems on infinite trees and digraphs (Q2543982) (← links)
- Positive Definite Matrices and Catalan Numbers, Revisited (Q3322107) (← links)