𝔖 Bobbio Scriptorium
✦   LIBER   ✦

The number of ways to label a structure

✍ Scribed by Frank Harary; Edgar M. Palmer; Ronald C. Read


Book ID
112725306
Publisher
Springer
Year
1967
Tongue
English
Weight
129 KB
Volume
32
Category
Article
ISSN
0033-3123

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πŸ“œ SIMILAR VOLUMES


A formula for the number of labelled tre
✍ Vites Longani πŸ“‚ Article πŸ“… 2008 πŸ› Elsevier Science 🌐 English βš– 347 KB

Let L(n, r) be the number of labelled trees with n points and r end-points. In this paper it is shown that the number L(n, r) can be obtained from the formula