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*       www.FindStat.org - The Combinatorial Statistic Finder               *
*                                                                           *
*       Copyright (C) 2019 The FindStatCrew <info@findstat.org>             *
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*    This information is distributed in the hope that it will be useful,    *
*    but WITHOUT ANY WARRANTY; without even the implied warranty of         *
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-----------------------------------------------------------------------------
Statistic identifier: St000818

-----------------------------------------------------------------------------
Collection: Integer compositions

-----------------------------------------------------------------------------
Description: The sum of the entries in the column specified by the composition of the change of basis matrix from quasisymmetric Schur functions to monomial quasisymmetric functions.

For example, $QS_{31} = M_{1111} + M_{121} + M_{211} + M_{31}$, so the statistic on the composition $31$ is 4.

Apparently, the sum over all compositions gives the sequence [[oeis:A138178]].

-----------------------------------------------------------------------------
References: 

-----------------------------------------------------------------------------
Code:
def statistic(mu):
    M = QuasiSymmetricFunctions(ZZ).M()
    QS = QuasiSymmetricFunctions(ZZ).QS()
    return sum(coeff for _, coeff in M(QS(mu)))

-----------------------------------------------------------------------------
Statistic values:

[1,1]               => 1
[2]                 => 2
[1,1,1]             => 1
[1,2]               => 2
[2,1]               => 2
[3]                 => 4
[1,1,1,1]           => 1
[1,1,2]             => 2
[1,2,1]             => 2
[1,3]               => 8
[2,1,1]             => 2
[2,2]               => 6
[3,1]               => 4
[4]                 => 8
[1,1,1,1,1]         => 1
[1,1,1,2]           => 2
[1,1,2,1]           => 2
[1,1,3]             => 12
[1,2,1,1]           => 2
[1,2,2]             => 6
[1,3,1]             => 8
[1,4]               => 24
[2,1,1,1]           => 2
[2,1,2]             => 4
[2,2,1]             => 6
[2,3]               => 12
[3,1,1]             => 4
[3,2]               => 16
[4,1]               => 8
[5]                 => 16
[1,1,1,1,1,1]       => 1
[1,1,1,1,2]         => 2
[1,1,1,2,1]         => 2
[1,1,1,3]           => 16
[1,1,2,1,1]         => 2
[1,1,2,2]           => 6
[1,1,3,1]           => 12
[1,1,4]             => 48
[1,2,1,1,1]         => 2
[1,2,1,2]           => 4
[1,2,2,1]           => 6
[1,2,3]             => 12
[1,3,1,1]           => 8
[1,3,2]             => 28
[1,4,1]             => 24
[1,5]               => 64
[2,1,1,1,1]         => 2
[2,1,1,2]           => 4
[2,1,2,1]           => 4
[2,1,3]             => 20
[2,2,1,1]           => 6
[2,2,2]             => 22
[2,3,1]             => 12
[2,4]               => 56
[3,1,1,1]           => 4
[3,1,2]             => 8
[3,2,1]             => 16
[3,3]               => 44
[4,1,1]             => 8
[4,2]               => 40
[5,1]               => 16
[6]                 => 32
[1,1,1,1,1,1,1]     => 1
[1,1,1,1,1,2]       => 2
[1,1,1,1,2,1]       => 2
[1,1,1,1,3]         => 20
[1,1,1,2,1,1]       => 2
[1,1,1,2,2]         => 6
[1,1,1,3,1]         => 16
[1,1,1,4]           => 80
[1,1,2,1,1,1]       => 2
[1,1,2,1,2]         => 4
[1,1,2,2,1]         => 6
[1,1,2,3]           => 12
[1,1,3,1,1]         => 12
[1,1,3,2]           => 40
[1,1,4,1]           => 48
[1,1,5]             => 160
[1,2,1,1,1,1]       => 2
[1,2,1,1,2]         => 4
[1,2,1,2,1]         => 4
[1,2,1,3]           => 20
[1,2,2,1,1]         => 6
[1,2,2,2]           => 22
[1,2,3,1]           => 12
[1,2,4]             => 80
[1,3,1,1,1]         => 8
[1,3,1,2]           => 16
[1,3,2,1]           => 28
[1,3,3]             => 112
[1,4,1,1]           => 24
[1,4,2]             => 96
[1,5,1]             => 64
[1,6]               => 160
[2,1,1,1,1,1]       => 2
[2,1,1,1,2]         => 4
[2,1,1,2,1]         => 4
[2,1,1,3]           => 28
[2,1,2,1,1]         => 4
[2,1,2,2]           => 12
[2,1,3,1]           => 20
[2,1,4]             => 112
[2,2,1,1,1]         => 6
[2,2,1,2]           => 12
[2,2,2,1]           => 22
[2,2,3]             => 44
[2,3,1,1]           => 12
[2,3,2]             => 56
[2,4,1]             => 56
[2,5]               => 192
[3,1,1,1,1]         => 4
[3,1,1,2]           => 8
[3,1,2,1]           => 8
[3,1,3]             => 48
[3,2,1,1]           => 16
[3,2,2]             => 68
[3,3,1]             => 44
[3,4]               => 88
[4,1,1,1]           => 8
[4,1,2]             => 16
[4,2,1]             => 40
[4,3]               => 136
[5,1,1]             => 16
[5,2]               => 96
[6,1]               => 32
[7]                 => 64
[1,1,1,1,1,1,1,1]   => 1
[1,1,1,1,1,1,2]     => 2
[1,1,1,1,1,2,1]     => 2
[1,1,1,1,1,3]       => 24
[1,1,1,1,2,1,1]     => 2
[1,1,1,1,2,2]       => 6
[1,1,1,1,3,1]       => 20
[1,1,1,1,4]         => 120
[1,1,1,2,1,1,1]     => 2
[1,1,1,2,1,2]       => 4
[1,1,1,2,2,1]       => 6
[1,1,1,2,3]         => 12
[1,1,1,3,1,1]       => 16
[1,1,1,3,2]         => 52
[1,1,1,4,1]         => 80
[1,1,1,5]           => 320
[1,1,2,1,1,1,1]     => 2
[1,1,2,1,1,2]       => 4
[1,1,2,1,2,1]       => 4
[1,1,2,1,3]         => 20
[1,1,2,2,1,1]       => 6
[1,1,2,2,2]         => 22
[1,1,2,3,1]         => 12
[1,1,2,4]           => 104
[1,1,3,1,1,1]       => 12
[1,1,3,1,2]         => 24
[1,1,3,2,1]         => 40
[1,1,3,3]           => 204
[1,1,4,1,1]         => 48
[1,1,4,2]           => 176
[1,1,5,1]           => 160
[1,1,6]             => 480
[1,2,1,1,1,1,1]     => 2
[1,2,1,1,1,2]       => 4
[1,2,1,1,2,1]       => 4
[1,2,1,1,3]         => 28
[1,2,1,2,1,1]       => 4
[1,2,1,2,2]         => 12
[1,2,1,3,1]         => 20
[1,2,1,4]           => 152
[1,2,2,1,1,1]       => 6
[1,2,2,1,2]         => 12
[1,2,2,2,1]         => 22
[1,2,2,3]           => 44
[1,2,3,1,1]         => 12
[1,2,3,2]           => 56
[1,2,4,1]           => 80
[1,2,5]             => 352
[1,3,1,1,1,1]       => 8
[1,3,1,1,2]         => 16
[1,3,1,2,1]         => 16
[1,3,1,3]           => 112
[1,3,2,1,1]         => 28
[1,3,2,2]           => 112
[1,3,3,1]           => 112
[1,3,4]             => 224
[1,4,1,1,1]         => 24
[1,4,1,2]           => 48
[1,4,2,1]           => 96
[1,4,3]             => 496
[1,5,1,1]           => 64
[1,5,2]             => 288
[1,6,1]             => 160
[1,7]               => 384
[2,1,1,1,1,1,1]     => 2
[2,1,1,1,1,2]       => 4
[2,1,1,1,2,1]       => 4
[2,1,1,1,3]         => 36
[2,1,1,2,1,1]       => 4
[2,1,1,2,2]         => 12
[2,1,1,3,1]         => 28
[2,1,1,4]           => 184
[2,1,2,1,1,1]       => 4
[2,1,2,1,2]         => 8
[2,1,2,2,1]         => 12
[2,1,2,3]           => 24
[2,1,3,1,1]         => 20
[2,1,3,2]           => 68
[2,1,4,1]           => 112
[2,1,5]             => 448
[2,2,1,1,1,1]       => 6
[2,2,1,1,2]         => 12
[2,2,1,2,1]         => 12
[2,2,1,3]           => 68
[2,2,2,1,1]         => 22
[2,2,2,2]           => 90
[2,2,3,1]           => 44
[2,2,4]             => 336
[2,3,1,1,1]         => 12
[2,3,1,2]           => 24
[2,3,2,1]           => 56
[2,3,3]             => 156
[2,4,1,1]           => 56
[2,4,2]             => 304
[2,5,1]             => 192
[2,6]               => 576
[3,1,1,1,1,1]       => 4
[3,1,1,1,2]         => 8
[3,1,1,2,1]         => 8
[3,1,1,3]           => 64
[3,1,2,1,1]         => 8
[3,1,2,2]           => 24
[3,1,3,1]           => 48
[3,1,4]             => 184
[3,2,1,1,1]         => 16
[3,2,1,2]           => 32
[3,2,2,1]           => 68
[3,2,3]             => 136
[3,3,1,1]           => 44
[3,3,2]             => 248
[3,4,1]             => 88
[3,5]               => 448
[4,1,1,1,1]         => 8
[4,1,1,2]           => 16
[4,1,2,1]           => 16
[4,1,3]             => 112
[4,2,1,1]           => 40
[4,2,2]             => 192
[4,3,1]             => 136
[4,4]               => 360
[5,1,1,1]           => 16
[5,1,2]             => 32
[5,2,1]             => 96
[5,3]               => 384
[6,1,1]             => 32
[6,2]               => 224
[7,1]               => 64
[8]                 => 128
[1,1,1,1,1,1,1,1,1] => 1
[1,1,1,1,1,1,1,2]   => 2
[1,1,1,1,1,1,2,1]   => 2
[1,1,1,1,1,1,3]     => 28
[1,1,1,1,1,2,1,1]   => 2
[1,1,1,1,1,2,2]     => 6
[1,1,1,1,1,3,1]     => 24
[1,1,1,1,1,4]       => 168
[1,1,1,1,2,1,1,1]   => 2
[1,1,1,1,2,1,2]     => 4
[1,1,1,1,2,2,1]     => 6
[1,1,1,1,2,3]       => 12
[1,1,1,1,3,1,1]     => 20
[1,1,1,1,3,2]       => 64
[1,1,1,1,4,1]       => 120
[1,1,1,1,5]         => 560
[1,1,1,2,1,1,1,1]   => 2
[1,1,1,2,1,1,2]     => 4
[1,1,1,2,1,2,1]     => 4
[1,1,1,2,1,3]       => 20
[1,1,1,2,2,1,1]     => 6
[1,1,1,2,2,2]       => 22
[1,1,1,2,3,1]       => 12
[1,1,1,2,4]         => 128
[1,1,1,3,1,1,1]     => 16
[1,1,1,3,1,2]       => 32
[1,1,1,3,2,1]       => 52
[1,1,1,3,3]         => 320
[1,1,1,4,1,1]       => 80
[1,1,1,4,2]         => 280
[1,1,1,5,1]         => 320
[1,1,1,6]           => 1120
[1,1,2,1,1,1,1,1]   => 2
[1,1,2,1,1,1,2]     => 4
[1,1,2,1,1,2,1]     => 4
[1,1,2,1,1,3]       => 28
[1,1,2,1,2,1,1]     => 4
[1,1,2,1,2,2]       => 12
[1,1,2,1,3,1]       => 20
[1,1,2,1,4]         => 192
[1,1,2,2,1,1,1]     => 6
[1,1,2,2,1,2]       => 12
[1,1,2,2,2,1]       => 22
[1,1,2,2,3]         => 44
[1,1,2,3,1,1]       => 12
[1,1,2,3,2]         => 56
[1,1,2,4,1]         => 104
[1,1,2,5]           => 560
[1,1,3,1,1,1,1]     => 12
[1,1,3,1,1,2]       => 24
[1,1,3,1,2,1]       => 24
[1,1,3,1,3]         => 192
[1,1,3,2,1,1]       => 40
[1,1,3,2,2]         => 156
[1,1,3,3,1]         => 204
[1,1,3,4]           => 408
[1,1,4,1,1,1]       => 48
[1,1,4,1,2]         => 96
[1,1,4,2,1]         => 176
[1,1,4,3]           => 1176
[1,1,5,1,1]         => 160
[1,1,5,2]           => 640
[1,1,6,1]           => 480
[1,1,7]             => 1344
[1,2,1,1,1,1,1,1]   => 2
[1,2,1,1,1,1,2]     => 4
[1,2,1,1,1,2,1]     => 4
[1,2,1,1,1,3]       => 36
[1,2,1,1,2,1,1]     => 4
[1,2,1,1,2,2]       => 12
[1,2,1,1,3,1]       => 28
[1,2,1,1,4]         => 240
[1,2,1,2,1,1,1]     => 4
[1,2,1,2,1,2]       => 8
[1,2,1,2,2,1]       => 12
[1,2,1,2,3]         => 24
[1,2,1,3,1,1]       => 20
[1,2,1,3,2]         => 68
[1,2,1,4,1]         => 152
[1,2,1,5]           => 752
[1,2,2,1,1,1,1]     => 6
[1,2,2,1,1,2]       => 12
[1,2,2,1,2,1]       => 12
[1,2,2,1,3]         => 68
[1,2,2,2,1,1]       => 22
[1,2,2,2,2]         => 90
[1,2,2,3,1]         => 44
[1,2,2,4]           => 424
[1,2,3,1,1,1]       => 12
[1,2,3,1,2]         => 24
[1,2,3,2,1]         => 56
[1,2,3,3]           => 156
[1,2,4,1,1]         => 80
[1,2,4,2]           => 416
[1,2,5,1]           => 352
[1,2,6]             => 1280
[1,3,1,1,1,1,1]     => 8
[1,3,1,1,1,2]       => 16
[1,3,1,1,2,1]       => 16
[1,3,1,1,3]         => 144
[1,3,1,2,1,1]       => 16
[1,3,1,2,2]         => 48
[1,3,1,3,1]         => 112
[1,3,1,4]           => 448
[1,3,2,1,1,1]       => 28
[1,3,2,1,2]         => 56
[1,3,2,2,1]         => 112
[1,3,2,3]           => 224
[1,3,3,1,1]         => 112
[1,3,3,2]           => 540
[1,3,4,1]           => 224
[1,3,5]             => 1440
[1,4,1,1,1,1]       => 24
[1,4,1,1,2]         => 48
[1,4,1,2,1]         => 48
[1,4,1,3]           => 400
[1,4,2,1,1]         => 96
[1,4,2,2]           => 416
[1,4,3,1]           => 496
[1,4,4]             => 1576
[1,5,1,1,1]         => 64
[1,5,1,2]           => 128
[1,5,2,1]           => 288
[1,5,3]             => 1760
[1,6,1,1]           => 160
[1,6,2]             => 800
[1,7,1]             => 384
[1,8]               => 896
[2,1,1,1,1,1,1,1]   => 2
[2,1,1,1,1,1,2]     => 4
[2,1,1,1,1,2,1]     => 4
[2,1,1,1,1,3]       => 44
[2,1,1,1,2,1,1]     => 4
[2,1,1,1,2,2]       => 12
[2,1,1,1,3,1]       => 36
[2,1,1,1,4]         => 272
[2,1,1,2,1,1,1]     => 4
[2,1,1,2,1,2]       => 8
[2,1,1,2,2,1]       => 12
[2,1,1,2,3]         => 24
[2,1,1,3,1,1]       => 28
[2,1,1,3,2]         => 92
[2,1,1,4,1]         => 184
[2,1,1,5]           => 848
[2,1,2,1,1,1,1]     => 4
[2,1,2,1,1,2]       => 8
[2,1,2,1,2,1]       => 8
[2,1,2,1,3]         => 40
[2,1,2,2,1,1]       => 12
[2,1,2,2,2]         => 44
[2,1,2,3,1]         => 24
[2,1,2,4]           => 232
[2,1,3,1,1,1]       => 20
[2,1,3,1,2]         => 40
[2,1,3,2,1]         => 68
[2,1,3,3]           => 316
[2,1,4,1,1]         => 112
[2,1,4,2]           => 408
[2,1,5,1]           => 448
[2,1,6]             => 1536
[2,2,1,1,1,1,1]     => 6
[2,2,1,1,1,2]       => 12
[2,2,1,1,2,1]       => 12
[2,2,1,1,3]         => 92
[2,2,1,2,1,1]       => 12
[2,2,1,2,2]         => 36
[2,2,1,3,1]         => 68
[2,2,1,4]           => 584
[2,2,2,1,1,1]       => 22
[2,2,2,1,2]         => 44
[2,2,2,2,1]         => 90
[2,2,2,3]           => 180
[2,2,3,1,1]         => 44
[2,2,3,2]           => 224
[2,2,4,1]           => 336
[2,2,5]             => 1664
[2,3,1,1,1,1]       => 12
[2,3,1,1,2]         => 24
[2,3,1,2,1]         => 24
[2,3,1,3]           => 160
[2,3,2,1,1]         => 56
[2,3,2,2]           => 260
[2,3,3,1]           => 156
[2,3,4]             => 312
[2,4,1,1,1]         => 56
[2,4,1,2]           => 112
[2,4,2,1]           => 304
[2,4,3]             => 944
[2,5,1,1]           => 192
[2,5,2]             => 1184
[2,6,1]             => 576
[2,7]               => 1600
[3,1,1,1,1,1,1]     => 4
[3,1,1,1,1,2]       => 8
[3,1,1,1,2,1]       => 8
[3,1,1,1,3]         => 80
[3,1,1,2,1,1]       => 8
[3,1,1,2,2]         => 24
[3,1,1,3,1]         => 64
[3,1,1,4]           => 312
[3,1,2,1,1,1]       => 8
[3,1,2,1,2]         => 16
[3,1,2,2,1]         => 24
[3,1,2,3]           => 48
[3,1,3,1,1]         => 48
[3,1,3,2]           => 160
[3,1,4,1]           => 184
[3,1,5]             => 1040
[3,2,1,1,1,1]       => 16
[3,2,1,1,2]         => 32
[3,2,1,2,1]         => 32
[3,2,1,3]           => 200
[3,2,2,1,1]         => 68
[3,2,2,2]           => 304
[3,2,3,1]           => 136
[3,2,4]             => 768
[3,3,1,1,1]         => 44
[3,3,1,2]           => 88
[3,3,2,1]           => 248
[3,3,3]             => 788
[3,4,1,1]           => 88
[3,4,2]             => 584
[3,5,1]             => 448
[3,6]               => 1664
[4,1,1,1,1,1]       => 8
[4,1,1,1,2]         => 16
[4,1,1,2,1]         => 16
[4,1,1,3]           => 144
[4,1,2,1,1]         => 16
[4,1,2,2]           => 48
[4,1,3,1]           => 112
[4,1,4]             => 496
[4,2,1,1,1]         => 40
[4,2,1,2]           => 80
[4,2,2,1]           => 192
[4,2,3]             => 384
[4,3,1,1]           => 136
[4,3,2]             => 880
[4,4,1]             => 360
[4,5]               => 720
[5,1,1,1,1]         => 16
[5,1,1,2]           => 32
[5,1,2,1]           => 32
[5,1,3]             => 256
[5,2,1,1]           => 96
[5,2,2]             => 512
[5,3,1]             => 384
[5,4]               => 1216
[6,1,1,1]           => 32
[6,1,2]             => 64
[6,2,1]             => 224
[6,3]               => 1024
[7,1,1]             => 64
[7,2]               => 512
[8,1]               => 128
[9]                 => 256

-----------------------------------------------------------------------------
Created: May 20, 2017 at 21:59 by Martin Rubey

-----------------------------------------------------------------------------
Last Updated: May 20, 2017 at 22:26 by Martin Rubey