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BlockConcatenation from SetComposition ​

The permutation that lists the blocks in order, each sorted increasingly.

SetComposition → Permutationsurjection

FindStat's Mp00286. Lossy: where one block ends and the next starts is forgotten.

Called as CombinatorialMap(x, "BlockConcatenation"). The head's page has its examples.

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Each element of SetComposition at a size, and its image, applied in your browser; sizes past 6 are not offered.

Properties

Transport a statistic

Pick a statistic on Permutation. Its distribution over the images of SetComposition at each size is computed, and compared with the 0 statistics on SetComposition: those that share it are the ones the map sends it to, as far as the sizes computed show.

FindStat Mp00286

to permutation

Matched by value: our map agrees with FindStat's image on each of the 1200 rows of size at most 6 we can read (0 unread; its table has 1200 rows).

SurjectionGraded mapas FindStat records them, checked by FindStat's contributors.

Return the permutation obtained by concatenating the blocks sorted into increasing order.
ObjectImage
[{1}][1]
[{1,2}][1,2]
[{1,2,3}][1,2,3]
[{1},{2}][1,2]

Data from FindStat, the combinatorial statistic finder; the page at findstat.org/Mp00286 has the rest.