notatio

PermutationInversion ​

A name from the enumeratio catalogue with no kernel of its own yet; this page carries its crosswalk only.

Catalogued in the enumeratio database; not yet written up here.

WikipediaLehmer codevia LehmerCodesOEISA000142via LehmerCodesSageMathsage.combinat.permutation.from_lehmer_codevia LehmerCodes
PermutationInversion(...)Catalogued in the enumeratio database; not yet written up here.
Typed signatures
TypePackageApplies
(list<integer>) -> permutation_inversioncombinatoricsalways

Domain: Combinatorics

Maps

Into and out of PermutationInversion, called as CombinatorialMap(x, "Name"). Properties are the laws we state and what FindStat records.

To PermutationInversion

  • ToLehmerCodePermutation → PermutationInversionEntry i counts the later entries smaller than p(i).
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