Abstract
In this paper, we make a contribution to the enumeration of permutations avoiding
a quadruples of 4-letter patterns by establishing a Wilf class composed of 19 symmetry classes.
a quadruples of 4-letter patterns by establishing a Wilf class composed of 19 symmetry classes.
Original language | English |
---|---|
Pages (from-to) | 79–99 |
Journal | Notes on Number Theory and Discrete Mathematics |
Volume | 23 |
Issue number | 3 |
State | Published - 2017 |