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GlaisherFranklin from IntegerPartition ​

The Glaisher-Franklin bijection: even part sizes halved become repeated parts, and repeated odd parts merge into their binary multiples.

IntegerPartition → IntegerPartitionbijectioninverse

FindStat's Mp00312. It sends the set of even part sizes, each halved, to the set of repeated part sizes.

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

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Explore

Each element of IntegerPartition at a size, and its image, applied in your browser; sizes past 7 are not offered.

Properties

Transport a statistic

Pick a statistic on IntegerPartition. Its distribution over the images of IntegerPartition at each size is computed, and compared with the 165 statistics on IntegerPartition: those that share it are the ones the map sends it to, as far as the sizes computed show.

FindStat Mp00312

Glaisher-Franklin

Matched by value: our map agrees with FindStat's image on each of the 29 rows of size at most 6 we can read (0 unread; its table has 1200 rows).

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

The Glaisher-Franklin bijection on integer partitions.
ObjectImage
[1][1]
[2][1,1]
[3][3]
[4][2,2]

Data from FindStat, the combinatorial statistic finder; the page at findstat.org/Mp00312 has the rest.