FlattenedMajorIndex on SetPartition
The major index of the permutation listing the blocks in order, each ascending.
Called as CombinatorialStat(x, "FlattenedMajorIndex"). The head's page has its examples.
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FindStat St000748
The major index of the permutation obtained by flattening the set partition.
| Object | Value |
|---|---|
{{1,2}} | 0 |
{{1,2,3}} | 0 |
{{1},{2}} | 0 |
{{1,2,3,4}} | 0 |
{{1,2},{3}} | 0 |
{{1,3},{2}} | 2 |
{{1},{2,3}} | 0 |
{{1,2,3,4,5}} | 0 |
Data from FindStat, the combinatorial statistic finder; the page at findstat.org/St000748 has the rest.