OccurrencesOf21Dash3 on Permutation
Triples i, i+1, k with k > i+1 ordered as 213 (21-3).
Called as CombinatorialStat(x, "OccurrencesOf21Dash3"). The head's page has its examples.
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FindStat St000355
The number of occurrences of the pattern 21-3.
| Object | Value |
|---|---|
[1] | 0 |
[1,2] | 0 |
[2,1] | 0 |
[1,2,3] | 0 |
[1,3,2] | 0 |
[2,1,3] | 1 |
[2,3,1] | 0 |
[3,1,2] | 0 |
Data from FindStat, the combinatorial statistic finder; the page at findstat.org/St000355 has the rest.