AWilf class composed of 19 symmetry classes of quadruples of 4-letter patterns
NOTES ON NUMBER THEORY AND DISCRETE MATHEMATICS, vol.23, no.3, pp.79-99, 2017 (ESCI)
- Publication Type: Article / Article
- Volume: 23 Issue: 3
- Publication Date: 2017
- Journal Name: NOTES ON NUMBER THEORY AND DISCRETE MATHEMATICS
- Journal Indexes: Emerging Sources Citation Index (ESCI)
- Page Numbers: pp.79-99
- Hacettepe University Affiliated: Yes
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.