Original scientific paper
Secondary structures, plane trees and Motzkin numbers
T. Došlić
D. Veljan
Abstract
A bijective correspondence is established between secondary
structures of a given rank and size and plane trees satisfying
certain additional conditions. The correspondence is then used to obtain new combinatorial interpretations of Motzkin numbers in terms of plane trees and Dyck paths.
Keywords
Motzkin numbers; plane trees; secondary structures; Dyck paths
Hrčak ID:
17957
URI
Publication date:
7.12.2007.
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