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SumOfHookLengths on IntegerPartition ​

The total of all hook lengths.

On IntegerPartition

Hook of cell (i, j) is arm + leg + 1 = (λ_i - j) + (λ'_j - i) + 1.

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

Live

FindStat St000869

The sum of the hook lengths of an integer partition.

ObjectValue
[]0
[1]1
[2]3
[3]6
[4]10
[5]15
[6]21
[7]28

Data from FindStat, the combinatorial statistic finder; the page at findstat.org/St000869 has the rest.