A formula for the number of labelled trees
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 L (n, r) = fenced(frac(n, n - r)) underover(∑, i = 0, n - r - 1) (- 1)i fenced(frac(n - r, i)) (n - r - i)n - 2 . © 2008 Elsevier Ltd. All...
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| Format: | Article |
| Language: | English |
| Published: |
2014
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| Online Access: | http://www.scopus.com/inward/record.url?eid=2-s2.0-54849415227&partnerID=40&md5=a1a5baaf9328c8d675e8bf0137258963 http://cmuir.cmu.ac.th/handle/6653943832/5383 |
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| Institution: | Chiang Mai University |
| Language: | English |
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