Abstract
Let Sn be the symmetric group of all permutations of n letters. We show that
the number of distinct Wilf classes of subsets of exactly seven four-letter patterns is 15392, and that the number of distinct Wilf classes of subsets of exactly six four-letter patterns is 8438.
the number of distinct Wilf classes of subsets of exactly seven four-letter patterns is 15392, and that the number of distinct Wilf classes of subsets of exactly six four-letter patterns is 8438.
| Original language | English |
|---|---|
| Pages (from-to) | 169-213 |
| Number of pages | 45 |
| Journal | Journal of Combinatorics and Number Theory |
| Volume | 9 |
| Issue number | 3 |
| State | Published - 2017 |