Title
From Motzkin to Catalan permutations
Abstract
For every integer j ⩾1, we define a class of permutations in terms of certain forbidden subsequences. For j =1, the corresponding permutations are counted by the Motzkin numbers, and for j =∞ (defined in the text), they are counted by the Catalan numbers. Each value of j >1 gives rise to a counting sequence that lies between the Motzkin and the Catalan numbers. We compute the generating function associated to these permutations according to several parameters. For every j ⩾1, we show that only this generating function is algebraic according to the length of the permutations.
Year
DOI
Venue
2000
10.1016/S0012-365X(99)00254-X
Discrete Mathematics
Keywords
Field
DocType
catalan permutation,generating function,catalan number
Integer,Discrete mathematics,Generating function,Combinatorics,Golomb–Dickman constant,Algebraic number,Permutation,Catalan number,Motzkin number,Stirling numbers of the first kind,Mathematics
Journal
Volume
Issue
ISSN
217
1-3
Discrete Mathematics
Citations 
PageRank 
References 
13
1.14
13
Authors
4
Name
Order
Citations
PageRank
Elena Barcucci130659.66
Alberto Del Lungo237644.84
Elisa Pergola314918.60
Renzo Pinzani434167.45