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Identifier

St001248: Integer partitions ⟶ ℤ

Values

[1] => 0

[2] => 2

[1,1] => 0

[3] => 0

[2,1] => 2

[1,1,1] => 0

[4] => 4

[3,1] => 0

[2,2] => 4

[2,1,1] => 2

[1,1,1,1] => 0

[5] => 0

[4,1] => 4

[3,2] => 2

[3,1,1] => 0

[2,2,1] => 4

[2,1,1,1] => 2

[1,1,1,1,1] => 0

[6] => 6

[5,1] => 0

[4,2] => 6

[4,1,1] => 4

[3,3] => 0

[3,2,1] => 2

[3,1,1,1] => 0

[2,2,2] => 6

[2,2,1,1] => 4

[2,1,1,1,1] => 2

[1,1,1,1,1,1] => 0

[7] => 0

[6,1] => 6

[5,2] => 2

[5,1,1] => 0

[4,3] => 4

[4,2,1] => 6

[4,1,1,1] => 4

[3,3,1] => 0

[3,2,2] => 4

[3,2,1,1] => 2

[3,1,1,1,1] => 0

[2,2,2,1] => 6

[2,2,1,1,1] => 4

[2,1,1,1,1,1] => 2

[1,1,1,1,1,1,1] => 0

[8] => 8

[7,1] => 0

[6,2] => 8

[6,1,1] => 6

[5,3] => 0

[5,2,1] => 2

[5,1,1,1] => 0

[4,4] => 8

[4,3,1] => 4

[4,2,2] => 8

[4,2,1,1] => 6

[4,1,1,1,1] => 4

[3,3,2] => 2

[3,3,1,1] => 0

[3,2,2,1] => 4

[3,2,1,1,1] => 2

[3,1,1,1,1,1] => 0

[2,2,2,2] => 8

[2,2,2,1,1] => 6

[2,2,1,1,1,1] => 4

[2,1,1,1,1,1,1] => 2

[1,1,1,1,1,1,1,1] => 0

[9] => 0

[8,1] => 8

[7,2] => 2

[7,1,1] => 0

[6,3] => 6

[6,2,1] => 8

[6,1,1,1] => 6

[5,4] => 4

[5,3,1] => 0

[5,2,2] => 4

[5,2,1,1] => 2

[5,1,1,1,1] => 0

[4,4,1] => 8

[4,3,2] => 6

[4,3,1,1] => 4

[4,2,2,1] => 8

[4,2,1,1,1] => 6

[4,1,1,1,1,1] => 4

[3,3,3] => 0

[3,3,2,1] => 2

[3,3,1,1,1] => 0

[3,2,2,2] => 6

[3,2,2,1,1] => 4

[3,2,1,1,1,1] => 2

[3,1,1,1,1,1,1] => 0

[2,2,2,2,1] => 8

[2,2,2,1,1,1] => 6

[2,2,1,1,1,1,1] => 4

[2,1,1,1,1,1,1,1] => 2

[1,1,1,1,1,1,1,1,1] => 0

[10] => 10

[9,1] => 0

[8,2] => 10

[8,1,1] => 8

[7,3] => 0

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Description

Sum of the even parts of a partition.

Code

def statistic(L):
    return sum(i for i in L if is_even(i))

Created

Sep 10, 2018 at 10:51 by Christian Stump

Updated

Sep 10, 2018 at 10:51 by Christian Stump