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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         *
*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.                   *
*****************************************************************************

-----------------------------------------------------------------------------
Statistic identifier: St001903

-----------------------------------------------------------------------------
Collection: Parking functions

-----------------------------------------------------------------------------
Description: The number of fixed points of a parking function.

If $(a_1,\dots,a_n)$ is a parking function, a fixed point is an index $i$ such that $a_i = i$.

It can be shown [1] that the generating function for parking functions with respect to this statistic is
$$
\frac{1}{(n+1)^2} \left((q+n)^{n+1} - (q-1)^{n+1}\right).
$$

-----------------------------------------------------------------------------
References: [1] Richard Stanley and Mei Yin, 2023, private communication. 

-----------------------------------------------------------------------------
Code:
def statistic(p):
    return sum(1 for i, e in enumerate(p, 1) if i == e)

def generating_function(n):
    R.<q> = ZZ[]
    return 1/(n+1)^2*((q+n)^(n+1) - (q-1)^(n+1))

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

[1]         => 1
[1,1]       => 1
[1,2]       => 2
[2,1]       => 0
[1,1,1]     => 1
[1,1,2]     => 1
[1,2,1]     => 2
[2,1,1]     => 0
[1,1,3]     => 2
[1,3,1]     => 1
[3,1,1]     => 0
[1,2,2]     => 2
[2,1,2]     => 0
[2,2,1]     => 1
[1,2,3]     => 3
[1,3,2]     => 1
[2,1,3]     => 1
[2,3,1]     => 0
[3,1,2]     => 0
[3,2,1]     => 1
[1,1,1,1]   => 1
[1,1,1,2]   => 1
[1,1,2,1]   => 1
[1,2,1,1]   => 2
[2,1,1,1]   => 0
[1,1,1,3]   => 1
[1,1,3,1]   => 2
[1,3,1,1]   => 1
[3,1,1,1]   => 0
[1,1,1,4]   => 2
[1,1,4,1]   => 1
[1,4,1,1]   => 1
[4,1,1,1]   => 0
[1,1,2,2]   => 1
[1,2,1,2]   => 2
[1,2,2,1]   => 2
[2,1,1,2]   => 0
[2,1,2,1]   => 0
[2,2,1,1]   => 1
[1,1,2,3]   => 1
[1,1,3,2]   => 2
[1,2,1,3]   => 2
[1,2,3,1]   => 3
[1,3,1,2]   => 1
[1,3,2,1]   => 1
[2,1,1,3]   => 0
[2,1,3,1]   => 1
[2,3,1,1]   => 0
[3,1,1,2]   => 0
[3,1,2,1]   => 0
[3,2,1,1]   => 1
[1,1,2,4]   => 2
[1,1,4,2]   => 1
[1,2,1,4]   => 3
[1,2,4,1]   => 2
[1,4,1,2]   => 1
[1,4,2,1]   => 1
[2,1,1,4]   => 1
[2,1,4,1]   => 0
[2,4,1,1]   => 0
[4,1,1,2]   => 0
[4,1,2,1]   => 0
[4,2,1,1]   => 1
[1,1,3,3]   => 2
[1,3,1,3]   => 1
[1,3,3,1]   => 2
[3,1,1,3]   => 0
[3,1,3,1]   => 1
[3,3,1,1]   => 0
[1,1,3,4]   => 3
[1,1,4,3]   => 1
[1,3,1,4]   => 2
[1,3,4,1]   => 1
[1,4,1,3]   => 1
[1,4,3,1]   => 2
[3,1,1,4]   => 1
[3,1,4,1]   => 0
[3,4,1,1]   => 0
[4,1,1,3]   => 0
[4,1,3,1]   => 1
[4,3,1,1]   => 0
[1,2,2,2]   => 2
[2,1,2,2]   => 0
[2,2,1,2]   => 1
[2,2,2,1]   => 1
[1,2,2,3]   => 2
[1,2,3,2]   => 3
[1,3,2,2]   => 1
[2,1,2,3]   => 0
[2,1,3,2]   => 1
[2,2,1,3]   => 1
[2,2,3,1]   => 2
[2,3,1,2]   => 0
[2,3,2,1]   => 0
[3,1,2,2]   => 0
[3,2,1,2]   => 1
[3,2,2,1]   => 1
[1,2,2,4]   => 3
[1,2,4,2]   => 2
[1,4,2,2]   => 1
[2,1,2,4]   => 1
[2,1,4,2]   => 0
[2,2,1,4]   => 2
[2,2,4,1]   => 1
[2,4,1,2]   => 0
[2,4,2,1]   => 0
[4,1,2,2]   => 0
[4,2,1,2]   => 1
[4,2,2,1]   => 1
[1,2,3,3]   => 3
[1,3,2,3]   => 1
[1,3,3,2]   => 2
[2,1,3,3]   => 1
[2,3,1,3]   => 0
[2,3,3,1]   => 1
[3,1,2,3]   => 0
[3,1,3,2]   => 1
[3,2,1,3]   => 1
[3,2,3,1]   => 2
[3,3,1,2]   => 0
[3,3,2,1]   => 0
[1,2,3,4]   => 4
[1,2,4,3]   => 2
[1,3,2,4]   => 2
[1,3,4,2]   => 1
[1,4,2,3]   => 1
[1,4,3,2]   => 2
[2,1,3,4]   => 2
[2,1,4,3]   => 0
[2,3,1,4]   => 1
[2,3,4,1]   => 0
[2,4,1,3]   => 0
[2,4,3,1]   => 1
[3,1,2,4]   => 1
[3,1,4,2]   => 0
[3,2,1,4]   => 2
[3,2,4,1]   => 1
[3,4,1,2]   => 0
[3,4,2,1]   => 0
[4,1,2,3]   => 0
[4,1,3,2]   => 1
[4,2,1,3]   => 1
[4,2,3,1]   => 2
[4,3,1,2]   => 0
[4,3,2,1]   => 0
[1,1,1,1,1] => 1
[1,1,1,1,2] => 1
[1,1,1,2,1] => 1
[1,1,2,1,1] => 1
[1,2,1,1,1] => 2
[2,1,1,1,1] => 0
[1,1,1,1,3] => 1
[1,1,1,3,1] => 1
[1,1,3,1,1] => 2
[1,3,1,1,1] => 1
[3,1,1,1,1] => 0
[1,1,1,1,4] => 1
[1,1,1,4,1] => 2
[1,1,4,1,1] => 1
[1,4,1,1,1] => 1
[4,1,1,1,1] => 0
[1,1,1,1,5] => 2
[1,1,1,5,1] => 1
[1,1,5,1,1] => 1
[1,5,1,1,1] => 1
[5,1,1,1,1] => 0
[1,1,1,2,2] => 1
[1,1,2,1,2] => 1
[1,1,2,2,1] => 1
[1,2,1,1,2] => 2
[1,2,1,2,1] => 2
[1,2,2,1,1] => 2
[2,1,1,1,2] => 0
[2,1,1,2,1] => 0
[2,1,2,1,1] => 0
[2,2,1,1,1] => 1
[1,1,1,2,3] => 1
[1,1,1,3,2] => 1
[1,1,2,1,3] => 1
[1,1,2,3,1] => 1
[1,1,3,1,2] => 2
[1,1,3,2,1] => 2
[1,2,1,1,3] => 2
[1,2,1,3,1] => 2
[1,2,3,1,1] => 3
[1,3,1,1,2] => 1
[1,3,1,2,1] => 1
[1,3,2,1,1] => 1
[2,1,1,1,3] => 0
[2,1,1,3,1] => 0
[2,1,3,1,1] => 1
[2,3,1,1,1] => 0
[3,1,1,1,2] => 0
[3,1,1,2,1] => 0
[3,1,2,1,1] => 0
[3,2,1,1,1] => 1
[1,1,1,2,4] => 1
[1,1,1,4,2] => 2
[1,1,2,1,4] => 1
[1,1,2,4,1] => 2
[1,1,4,1,2] => 1
[1,1,4,2,1] => 1
[1,2,1,1,4] => 2
[1,2,1,4,1] => 3
[1,2,4,1,1] => 2
[1,4,1,1,2] => 1
[1,4,1,2,1] => 1
[1,4,2,1,1] => 1
[2,1,1,1,4] => 0
[2,1,1,4,1] => 1
[2,1,4,1,1] => 0
[2,4,1,1,1] => 0
[4,1,1,1,2] => 0
[4,1,1,2,1] => 0
[4,1,2,1,1] => 0
[4,2,1,1,1] => 1
[1,1,1,2,5] => 2
[1,1,1,5,2] => 1
[1,1,2,1,5] => 2
[1,1,2,5,1] => 1
[1,1,5,1,2] => 1
[1,1,5,2,1] => 1
[1,2,1,1,5] => 3
[1,2,1,5,1] => 2
[1,2,5,1,1] => 2
[1,5,1,1,2] => 1
[1,5,1,2,1] => 1
[1,5,2,1,1] => 1
[2,1,1,1,5] => 1
[2,1,1,5,1] => 0
[2,1,5,1,1] => 0
[2,5,1,1,1] => 0
[5,1,1,1,2] => 0
[5,1,1,2,1] => 0
[5,1,2,1,1] => 0
[5,2,1,1,1] => 1
[1,1,1,3,3] => 1
[1,1,3,1,3] => 2
[1,1,3,3,1] => 2
[1,3,1,1,3] => 1
[1,3,1,3,1] => 1
[1,3,3,1,1] => 2
[3,1,1,1,3] => 0
[3,1,1,3,1] => 0
[3,1,3,1,1] => 1
[3,3,1,1,1] => 0
[1,1,1,3,4] => 1
[1,1,1,4,3] => 2
[1,1,3,1,4] => 2
[1,1,3,4,1] => 3
[1,1,4,1,3] => 1
[1,1,4,3,1] => 1
[1,3,1,1,4] => 1
[1,3,1,4,1] => 2
[1,3,4,1,1] => 1
[1,4,1,1,3] => 1
[1,4,1,3,1] => 1
[1,4,3,1,1] => 2
[3,1,1,1,4] => 0
[3,1,1,4,1] => 1
[3,1,4,1,1] => 0
[3,4,1,1,1] => 0
[4,1,1,1,3] => 0
[4,1,1,3,1] => 0
[4,1,3,1,1] => 1
[4,3,1,1,1] => 0
[1,1,1,3,5] => 2
[1,1,1,5,3] => 1
[1,1,3,1,5] => 3
[1,1,3,5,1] => 2
[1,1,5,1,3] => 1
[1,1,5,3,1] => 1
[1,3,1,1,5] => 2
[1,3,1,5,1] => 1
[1,3,5,1,1] => 1
[1,5,1,1,3] => 1
[1,5,1,3,1] => 1
[1,5,3,1,1] => 2
[3,1,1,1,5] => 1
[3,1,1,5,1] => 0
[3,1,5,1,1] => 0
[3,5,1,1,1] => 0
[5,1,1,1,3] => 0
[5,1,1,3,1] => 0
[5,1,3,1,1] => 1
[5,3,1,1,1] => 0
[1,1,1,4,4] => 2
[1,1,4,1,4] => 1
[1,1,4,4,1] => 2
[1,4,1,1,4] => 1
[1,4,1,4,1] => 2
[1,4,4,1,1] => 1
[4,1,1,1,4] => 0
[4,1,1,4,1] => 1
[4,1,4,1,1] => 0
[4,4,1,1,1] => 0
[1,1,1,4,5] => 3
[1,1,1,5,4] => 1
[1,1,4,1,5] => 2
[1,1,4,5,1] => 1
[1,1,5,1,4] => 1
[1,1,5,4,1] => 2
[1,4,1,1,5] => 2
[1,4,1,5,1] => 1
[1,4,5,1,1] => 1
[1,5,1,1,4] => 1
[1,5,1,4,1] => 2
[1,5,4,1,1] => 1
[4,1,1,1,5] => 1
[4,1,1,5,1] => 0
[4,1,5,1,1] => 0
[4,5,1,1,1] => 0
[5,1,1,1,4] => 0
[5,1,1,4,1] => 1
[5,1,4,1,1] => 0
[5,4,1,1,1] => 0
[1,1,2,2,2] => 1
[1,2,1,2,2] => 2
[1,2,2,1,2] => 2
[1,2,2,2,1] => 2
[2,1,1,2,2] => 0
[2,1,2,1,2] => 0
[2,1,2,2,1] => 0
[2,2,1,1,2] => 1
[2,2,1,2,1] => 1
[2,2,2,1,1] => 1
[1,1,2,2,3] => 1
[1,1,2,3,2] => 1
[1,1,3,2,2] => 2
[1,2,1,2,3] => 2
[1,2,1,3,2] => 2
[1,2,2,1,3] => 2
[1,2,2,3,1] => 2
[1,2,3,1,2] => 3
[1,2,3,2,1] => 3
[1,3,1,2,2] => 1
[1,3,2,1,2] => 1
[1,3,2,2,1] => 1
[2,1,1,2,3] => 0
[2,1,1,3,2] => 0
[2,1,2,1,3] => 0
[2,1,2,3,1] => 0
[2,1,3,1,2] => 1
[2,1,3,2,1] => 1
[2,2,1,1,3] => 1
[2,2,1,3,1] => 1
[2,2,3,1,1] => 2
[2,3,1,1,2] => 0
[2,3,1,2,1] => 0
[2,3,2,1,1] => 0
[3,1,1,2,2] => 0
[3,1,2,1,2] => 0
[3,1,2,2,1] => 0
[3,2,1,1,2] => 1
[3,2,1,2,1] => 1
[3,2,2,1,1] => 1
[1,1,2,2,4] => 1
[1,1,2,4,2] => 2
[1,1,4,2,2] => 1
[1,2,1,2,4] => 2
[1,2,1,4,2] => 3
[1,2,2,1,4] => 2
[1,2,2,4,1] => 3
[1,2,4,1,2] => 2
[1,2,4,2,1] => 2
[1,4,1,2,2] => 1
[1,4,2,1,2] => 1
[1,4,2,2,1] => 1
[2,1,1,2,4] => 0
[2,1,1,4,2] => 1
[2,1,2,1,4] => 0
[2,1,2,4,1] => 1
[2,1,4,1,2] => 0
[2,1,4,2,1] => 0
[2,2,1,1,4] => 1
[2,2,1,4,1] => 2
[2,2,4,1,1] => 1
[2,4,1,1,2] => 0
[2,4,1,2,1] => 0
[2,4,2,1,1] => 0
[4,1,1,2,2] => 0
[4,1,2,1,2] => 0
[4,1,2,2,1] => 0
[4,2,1,1,2] => 1
[4,2,1,2,1] => 1
[4,2,2,1,1] => 1
[1,1,2,2,5] => 2
[1,1,2,5,2] => 1
[1,1,5,2,2] => 1
[1,2,1,2,5] => 3
[1,2,1,5,2] => 2
[1,2,2,1,5] => 3
[1,2,2,5,1] => 2
[1,2,5,1,2] => 2
[1,2,5,2,1] => 2
[1,5,1,2,2] => 1
[1,5,2,1,2] => 1
[1,5,2,2,1] => 1
[2,1,1,2,5] => 1
[2,1,1,5,2] => 0
[2,1,2,1,5] => 1
[2,1,2,5,1] => 0
[2,1,5,1,2] => 0
[2,1,5,2,1] => 0
[2,2,1,1,5] => 2
[2,2,1,5,1] => 1
[2,2,5,1,1] => 1
[2,5,1,1,2] => 0
[2,5,1,2,1] => 0
[2,5,2,1,1] => 0
[5,1,1,2,2] => 0
[5,1,2,1,2] => 0
[5,1,2,2,1] => 0
[5,2,1,1,2] => 1
[5,2,1,2,1] => 1
[5,2,2,1,1] => 1
[1,1,2,3,3] => 1
[1,1,3,2,3] => 2
[1,1,3,3,2] => 2
[1,2,1,3,3] => 2
[1,2,3,1,3] => 3
[1,2,3,3,1] => 3
[1,3,1,2,3] => 1
[1,3,1,3,2] => 1
[1,3,2,1,3] => 1
[1,3,2,3,1] => 1
[1,3,3,1,2] => 2
[1,3,3,2,1] => 2
[2,1,1,3,3] => 0
[2,1,3,1,3] => 1
[2,1,3,3,1] => 1
[2,3,1,1,3] => 0
[2,3,1,3,1] => 0
[2,3,3,1,1] => 1
[3,1,1,2,3] => 0
[3,1,1,3,2] => 0
[3,1,2,1,3] => 0
[3,1,2,3,1] => 0
[3,1,3,1,2] => 1
[3,1,3,2,1] => 1
[3,2,1,1,3] => 1
[3,2,1,3,1] => 1
[3,2,3,1,1] => 2
[3,3,1,1,2] => 0
[3,3,1,2,1] => 0
[3,3,2,1,1] => 0
[1,1,2,3,4] => 1
[1,1,2,4,3] => 2
[1,1,3,2,4] => 2
[1,1,3,4,2] => 3
[1,1,4,2,3] => 1
[1,1,4,3,2] => 1
[1,2,1,3,4] => 2
[1,2,1,4,3] => 3
[1,2,3,1,4] => 3
[1,2,3,4,1] => 4
[1,2,4,1,3] => 2
[1,2,4,3,1] => 2
[1,3,1,2,4] => 1
[1,3,1,4,2] => 2
[1,3,2,1,4] => 1
[1,3,2,4,1] => 2
[1,3,4,1,2] => 1
[1,3,4,2,1] => 1
[1,4,1,2,3] => 1
[1,4,1,3,2] => 1
[1,4,2,1,3] => 1
[1,4,2,3,1] => 1
[1,4,3,1,2] => 2
[1,4,3,2,1] => 2
[2,1,1,3,4] => 0
[2,1,1,4,3] => 1
[2,1,3,1,4] => 1
[2,1,3,4,1] => 2
[2,1,4,1,3] => 0
[2,1,4,3,1] => 0
[2,3,1,1,4] => 0
[2,3,1,4,1] => 1
[2,3,4,1,1] => 0
[2,4,1,1,3] => 0
[2,4,1,3,1] => 0
[2,4,3,1,1] => 1
[3,1,1,2,4] => 0
[3,1,1,4,2] => 1
[3,1,2,1,4] => 0
[3,1,2,4,1] => 1
[3,1,4,1,2] => 0
[3,1,4,2,1] => 0
[3,2,1,1,4] => 1
[3,2,1,4,1] => 2
[3,2,4,1,1] => 1
[3,4,1,1,2] => 0
[3,4,1,2,1] => 0
[3,4,2,1,1] => 0
[4,1,1,2,3] => 0
[4,1,1,3,2] => 0
[4,1,2,1,3] => 0
[4,1,2,3,1] => 0
[4,1,3,1,2] => 1
[4,1,3,2,1] => 1
[4,2,1,1,3] => 1
[4,2,1,3,1] => 1
[4,2,3,1,1] => 2
[4,3,1,1,2] => 0
[4,3,1,2,1] => 0
[4,3,2,1,1] => 0
[1,1,2,3,5] => 2
[1,1,2,5,3] => 1
[1,1,3,2,5] => 3
[1,1,3,5,2] => 2
[1,1,5,2,3] => 1
[1,1,5,3,2] => 1
[1,2,1,3,5] => 3
[1,2,1,5,3] => 2
[1,2,3,1,5] => 4
[1,2,3,5,1] => 3
[1,2,5,1,3] => 2
[1,2,5,3,1] => 2
[1,3,1,2,5] => 2
[1,3,1,5,2] => 1
[1,3,2,1,5] => 2
[1,3,2,5,1] => 1
[1,3,5,1,2] => 1
[1,3,5,2,1] => 1
[1,5,1,2,3] => 1
[1,5,1,3,2] => 1
[1,5,2,1,3] => 1
[1,5,2,3,1] => 1
[1,5,3,1,2] => 2
[1,5,3,2,1] => 2
[2,1,1,3,5] => 1
[2,1,1,5,3] => 0
[2,1,3,1,5] => 2
[2,1,3,5,1] => 1
[2,1,5,1,3] => 0
[2,1,5,3,1] => 0
[2,3,1,1,5] => 1
[2,3,1,5,1] => 0
[2,3,5,1,1] => 0
[2,5,1,1,3] => 0
[2,5,1,3,1] => 0
[2,5,3,1,1] => 1
[3,1,1,2,5] => 1
[3,1,1,5,2] => 0
[3,1,2,1,5] => 1
[3,1,2,5,1] => 0
[3,1,5,1,2] => 0
[3,1,5,2,1] => 0
[3,2,1,1,5] => 2
[3,2,1,5,1] => 1
[3,2,5,1,1] => 1
[3,5,1,1,2] => 0
[3,5,1,2,1] => 0
[3,5,2,1,1] => 0
[5,1,1,2,3] => 0
[5,1,1,3,2] => 0
[5,1,2,1,3] => 0
[5,1,2,3,1] => 0
[5,1,3,1,2] => 1
[5,1,3,2,1] => 1
[5,2,1,1,3] => 1
[5,2,1,3,1] => 1
[5,2,3,1,1] => 2
[5,3,1,1,2] => 0
[5,3,1,2,1] => 0
[5,3,2,1,1] => 0
[1,1,2,4,4] => 2
[1,1,4,2,4] => 1
[1,1,4,4,2] => 2
[1,2,1,4,4] => 3
[1,2,4,1,4] => 2
[1,2,4,4,1] => 3
[1,4,1,2,4] => 1
[1,4,1,4,2] => 2
[1,4,2,1,4] => 1
[1,4,2,4,1] => 2
[1,4,4,1,2] => 1
[1,4,4,2,1] => 1
[2,1,1,4,4] => 1
[2,1,4,1,4] => 0
[2,1,4,4,1] => 1
[2,4,1,1,4] => 0
[2,4,1,4,1] => 1
[2,4,4,1,1] => 0
[4,1,1,2,4] => 0
[4,1,1,4,2] => 1
[4,1,2,1,4] => 0
[4,1,2,4,1] => 1
[4,1,4,1,2] => 0
[4,1,4,2,1] => 0
[4,2,1,1,4] => 1
[4,2,1,4,1] => 2
[4,2,4,1,1] => 1
[4,4,1,1,2] => 0
[4,4,1,2,1] => 0
[4,4,2,1,1] => 0
[1,1,2,4,5] => 3
[1,1,2,5,4] => 1
[1,1,4,2,5] => 2
[1,1,4,5,2] => 1
[1,1,5,2,4] => 1
[1,1,5,4,2] => 2
[1,2,1,4,5] => 4
[1,2,1,5,4] => 2
[1,2,4,1,5] => 3
[1,2,4,5,1] => 2
[1,2,5,1,4] => 2
[1,2,5,4,1] => 3
[1,4,1,2,5] => 2
[1,4,1,5,2] => 1
[1,4,2,1,5] => 2
[1,4,2,5,1] => 1
[1,4,5,1,2] => 1
[1,4,5,2,1] => 1
[1,5,1,2,4] => 1
[1,5,1,4,2] => 2
[1,5,2,1,4] => 1
[1,5,2,4,1] => 2
[1,5,4,1,2] => 1
[1,5,4,2,1] => 1
[2,1,1,4,5] => 2
[2,1,1,5,4] => 0
[2,1,4,1,5] => 1
[2,1,4,5,1] => 0
[2,1,5,1,4] => 0
[2,1,5,4,1] => 1
[2,4,1,1,5] => 1
[2,4,1,5,1] => 0
[2,4,5,1,1] => 0
[2,5,1,1,4] => 0
[2,5,1,4,1] => 1
[2,5,4,1,1] => 0
[4,1,1,2,5] => 1
[4,1,1,5,2] => 0
[4,1,2,1,5] => 1
[4,1,2,5,1] => 0
[4,1,5,1,2] => 0
[4,1,5,2,1] => 0
[4,2,1,1,5] => 2
[4,2,1,5,1] => 1
[4,2,5,1,1] => 1
[4,5,1,1,2] => 0
[4,5,1,2,1] => 0
[4,5,2,1,1] => 0
[5,1,1,2,4] => 0
[5,1,1,4,2] => 1
[5,1,2,1,4] => 0
[5,1,2,4,1] => 1
[5,1,4,1,2] => 0
[5,1,4,2,1] => 0
[5,2,1,1,4] => 1
[5,2,1,4,1] => 2
[5,2,4,1,1] => 1
[5,4,1,1,2] => 0
[5,4,1,2,1] => 0
[5,4,2,1,1] => 0
[1,1,3,3,3] => 2
[1,3,1,3,3] => 1
[1,3,3,1,3] => 2
[1,3,3,3,1] => 2
[3,1,1,3,3] => 0
[3,1,3,1,3] => 1
[3,1,3,3,1] => 1
[3,3,1,1,3] => 0
[3,3,1,3,1] => 0
[3,3,3,1,1] => 1
[1,1,3,3,4] => 2
[1,1,3,4,3] => 3
[1,1,4,3,3] => 1
[1,3,1,3,4] => 1
[1,3,1,4,3] => 2
[1,3,3,1,4] => 2
[1,3,3,4,1] => 3
[1,3,4,1,3] => 1
[1,3,4,3,1] => 1
[1,4,1,3,3] => 1
[1,4,3,1,3] => 2
[1,4,3,3,1] => 2
[3,1,1,3,4] => 0
[3,1,1,4,3] => 1
[3,1,3,1,4] => 1
[3,1,3,4,1] => 2
[3,1,4,1,3] => 0
[3,1,4,3,1] => 0
[3,3,1,1,4] => 0
[3,3,1,4,1] => 1
[3,3,4,1,1] => 0
[3,4,1,1,3] => 0
[3,4,1,3,1] => 0
[3,4,3,1,1] => 1
[4,1,1,3,3] => 0
[4,1,3,1,3] => 1
[4,1,3,3,1] => 1
[4,3,1,1,3] => 0
[4,3,1,3,1] => 0
[4,3,3,1,1] => 1
[1,1,3,3,5] => 3
[1,1,3,5,3] => 2
[1,1,5,3,3] => 1
[1,3,1,3,5] => 2
[1,3,1,5,3] => 1
[1,3,3,1,5] => 3
[1,3,3,5,1] => 2
[1,3,5,1,3] => 1
[1,3,5,3,1] => 1
[1,5,1,3,3] => 1
[1,5,3,1,3] => 2
[1,5,3,3,1] => 2
[3,1,1,3,5] => 1
[3,1,1,5,3] => 0
[3,1,3,1,5] => 2
[3,1,3,5,1] => 1
[3,1,5,1,3] => 0
[3,1,5,3,1] => 0
[3,3,1,1,5] => 1
[3,3,1,5,1] => 0
[3,3,5,1,1] => 0
[3,5,1,1,3] => 0
[3,5,1,3,1] => 0
[3,5,3,1,1] => 1
[5,1,1,3,3] => 0
[5,1,3,1,3] => 1
[5,1,3,3,1] => 1
[5,3,1,1,3] => 0
[5,3,1,3,1] => 0
[5,3,3,1,1] => 1
[1,1,3,4,4] => 3
[1,1,4,3,4] => 1
[1,1,4,4,3] => 2
[1,3,1,4,4] => 2
[1,3,4,1,4] => 1
[1,3,4,4,1] => 2
[1,4,1,3,4] => 1
[1,4,1,4,3] => 2
[1,4,3,1,4] => 2
[1,4,3,4,1] => 3
[1,4,4,1,3] => 1
[1,4,4,3,1] => 1
[3,1,1,4,4] => 1
[3,1,4,1,4] => 0
[3,1,4,4,1] => 1
[3,4,1,1,4] => 0
[3,4,1,4,1] => 1
[3,4,4,1,1] => 0
[4,1,1,3,4] => 0
[4,1,1,4,3] => 1
[4,1,3,1,4] => 1
[4,1,3,4,1] => 2
[4,1,4,1,3] => 0
[4,1,4,3,1] => 0
[4,3,1,1,4] => 0
[4,3,1,4,1] => 1
[4,3,4,1,1] => 0
[4,4,1,1,3] => 0
[4,4,1,3,1] => 0
[4,4,3,1,1] => 1
[1,1,3,4,5] => 4
[1,1,3,5,4] => 2
[1,1,4,3,5] => 2
[1,1,4,5,3] => 1
[1,1,5,3,4] => 1
[1,1,5,4,3] => 2
[1,3,1,4,5] => 3
[1,3,1,5,4] => 1
[1,3,4,1,5] => 2
[1,3,4,5,1] => 1
[1,3,5,1,4] => 1
[1,3,5,4,1] => 2
[1,4,1,3,5] => 2
[1,4,1,5,3] => 1
[1,4,3,1,5] => 3
[1,4,3,5,1] => 2
[1,4,5,1,3] => 1
[1,4,5,3,1] => 1
[1,5,1,3,4] => 1
[1,5,1,4,3] => 2
[1,5,3,1,4] => 2
[1,5,3,4,1] => 3
[1,5,4,1,3] => 1
[1,5,4,3,1] => 1
[3,1,1,4,5] => 2
[3,1,1,5,4] => 0
[3,1,4,1,5] => 1
[3,1,4,5,1] => 0
[3,1,5,1,4] => 0
[3,1,5,4,1] => 1
[3,4,1,1,5] => 1
[3,4,1,5,1] => 0
[3,4,5,1,1] => 0
[3,5,1,1,4] => 0
[3,5,1,4,1] => 1
[3,5,4,1,1] => 0
[4,1,1,3,5] => 1
[4,1,1,5,3] => 0
[4,1,3,1,5] => 2
[4,1,3,5,1] => 1
[4,1,5,1,3] => 0
[4,1,5,3,1] => 0
[4,3,1,1,5] => 1
[4,3,1,5,1] => 0
[4,3,5,1,1] => 0
[4,5,1,1,3] => 0
[4,5,1,3,1] => 0
[4,5,3,1,1] => 1
[5,1,1,3,4] => 0
[5,1,1,4,3] => 1
[5,1,3,1,4] => 1
[5,1,3,4,1] => 2
[5,1,4,1,3] => 0
[5,1,4,3,1] => 0
[5,3,1,1,4] => 0
[5,3,1,4,1] => 1
[5,3,4,1,1] => 0
[5,4,1,1,3] => 0
[5,4,1,3,1] => 0
[5,4,3,1,1] => 1
[1,2,2,2,2] => 2
[2,1,2,2,2] => 0
[2,2,1,2,2] => 1
[2,2,2,1,2] => 1
[2,2,2,2,1] => 1
[1,2,2,2,3] => 2
[1,2,2,3,2] => 2
[1,2,3,2,2] => 3
[1,3,2,2,2] => 1
[2,1,2,2,3] => 0
[2,1,2,3,2] => 0
[2,1,3,2,2] => 1
[2,2,1,2,3] => 1
[2,2,1,3,2] => 1
[2,2,2,1,3] => 1
[2,2,2,3,1] => 1
[2,2,3,1,2] => 2
[2,2,3,2,1] => 2
[2,3,1,2,2] => 0
[2,3,2,1,2] => 0
[2,3,2,2,1] => 0
[3,1,2,2,2] => 0
[3,2,1,2,2] => 1
[3,2,2,1,2] => 1
[3,2,2,2,1] => 1
[1,2,2,2,4] => 2
[1,2,2,4,2] => 3
[1,2,4,2,2] => 2
[1,4,2,2,2] => 1
[2,1,2,2,4] => 0
[2,1,2,4,2] => 1
[2,1,4,2,2] => 0
[2,2,1,2,4] => 1
[2,2,1,4,2] => 2
[2,2,2,1,4] => 1
[2,2,2,4,1] => 2
[2,2,4,1,2] => 1
[2,2,4,2,1] => 1
[2,4,1,2,2] => 0
[2,4,2,1,2] => 0
[2,4,2,2,1] => 0
[4,1,2,2,2] => 0
[4,2,1,2,2] => 1
[4,2,2,1,2] => 1
[4,2,2,2,1] => 1
[1,2,2,2,5] => 3
[1,2,2,5,2] => 2
[1,2,5,2,2] => 2
[1,5,2,2,2] => 1
[2,1,2,2,5] => 1
[2,1,2,5,2] => 0
[2,1,5,2,2] => 0
[2,2,1,2,5] => 2
[2,2,1,5,2] => 1
[2,2,2,1,5] => 2
[2,2,2,5,1] => 1
[2,2,5,1,2] => 1
[2,2,5,2,1] => 1
[2,5,1,2,2] => 0
[2,5,2,1,2] => 0
[2,5,2,2,1] => 0
[5,1,2,2,2] => 0
[5,2,1,2,2] => 1
[5,2,2,1,2] => 1
[5,2,2,2,1] => 1
[1,2,2,3,3] => 2
[1,2,3,2,3] => 3
[1,2,3,3,2] => 3
[1,3,2,2,3] => 1
[1,3,2,3,2] => 1
[1,3,3,2,2] => 2
[2,1,2,3,3] => 0
[2,1,3,2,3] => 1
[2,1,3,3,2] => 1
[2,2,1,3,3] => 1
[2,2,3,1,3] => 2
[2,2,3,3,1] => 2
[2,3,1,2,3] => 0
[2,3,1,3,2] => 0
[2,3,2,1,3] => 0
[2,3,2,3,1] => 0
[2,3,3,1,2] => 1
[2,3,3,2,1] => 1
[3,1,2,2,3] => 0
[3,1,2,3,2] => 0
[3,1,3,2,2] => 1
[3,2,1,2,3] => 1
[3,2,1,3,2] => 1
[3,2,2,1,3] => 1
[3,2,2,3,1] => 1
[3,2,3,1,2] => 2
[3,2,3,2,1] => 2
[3,3,1,2,2] => 0
[3,3,2,1,2] => 0
[3,3,2,2,1] => 0
[1,2,2,3,4] => 2
[1,2,2,4,3] => 3
[1,2,3,2,4] => 3
[1,2,3,4,2] => 4
[1,2,4,2,3] => 2
[1,2,4,3,2] => 2
[1,3,2,2,4] => 1
[1,3,2,4,2] => 2
[1,3,4,2,2] => 1
[1,4,2,2,3] => 1
[1,4,2,3,2] => 1
[1,4,3,2,2] => 2
[2,1,2,3,4] => 0
[2,1,2,4,3] => 1
[2,1,3,2,4] => 1
[2,1,3,4,2] => 2
[2,1,4,2,3] => 0
[2,1,4,3,2] => 0
[2,2,1,3,4] => 1
[2,2,1,4,3] => 2
[2,2,3,1,4] => 2
[2,2,3,4,1] => 3
[2,2,4,1,3] => 1
[2,2,4,3,1] => 1
[2,3,1,2,4] => 0
[2,3,1,4,2] => 1
[2,3,2,1,4] => 0
[2,3,2,4,1] => 1
[2,3,4,1,2] => 0
[2,3,4,2,1] => 0
[2,4,1,2,3] => 0
[2,4,1,3,2] => 0
[2,4,2,1,3] => 0
[2,4,2,3,1] => 0
[2,4,3,1,2] => 1
[2,4,3,2,1] => 1
[3,1,2,2,4] => 0
[3,1,2,4,2] => 1
[3,1,4,2,2] => 0
[3,2,1,2,4] => 1
[3,2,1,4,2] => 2
[3,2,2,1,4] => 1
[3,2,2,4,1] => 2
[3,2,4,1,2] => 1
[3,2,4,2,1] => 1
[3,4,1,2,2] => 0
[3,4,2,1,2] => 0
[3,4,2,2,1] => 0
[4,1,2,2,3] => 0
[4,1,2,3,2] => 0
[4,1,3,2,2] => 1
[4,2,1,2,3] => 1
[4,2,1,3,2] => 1
[4,2,2,1,3] => 1
[4,2,2,3,1] => 1
[4,2,3,1,2] => 2
[4,2,3,2,1] => 2
[4,3,1,2,2] => 0
[4,3,2,1,2] => 0
[4,3,2,2,1] => 0
[1,2,2,3,5] => 3
[1,2,2,5,3] => 2
[1,2,3,2,5] => 4
[1,2,3,5,2] => 3
[1,2,5,2,3] => 2
[1,2,5,3,2] => 2
[1,3,2,2,5] => 2
[1,3,2,5,2] => 1
[1,3,5,2,2] => 1
[1,5,2,2,3] => 1
[1,5,2,3,2] => 1
[1,5,3,2,2] => 2
[2,1,2,3,5] => 1
[2,1,2,5,3] => 0
[2,1,3,2,5] => 2
[2,1,3,5,2] => 1
[2,1,5,2,3] => 0
[2,1,5,3,2] => 0
[2,2,1,3,5] => 2
[2,2,1,5,3] => 1
[2,2,3,1,5] => 3
[2,2,3,5,1] => 2
[2,2,5,1,3] => 1
[2,2,5,3,1] => 1
[2,3,1,2,5] => 1
[2,3,1,5,2] => 0
[2,3,2,1,5] => 1
[2,3,2,5,1] => 0
[2,3,5,1,2] => 0
[2,3,5,2,1] => 0
[2,5,1,2,3] => 0
[2,5,1,3,2] => 0
[2,5,2,1,3] => 0
[2,5,2,3,1] => 0
[2,5,3,1,2] => 1
[2,5,3,2,1] => 1
[3,1,2,2,5] => 1
[3,1,2,5,2] => 0
[3,1,5,2,2] => 0
[3,2,1,2,5] => 2
[3,2,1,5,2] => 1
[3,2,2,1,5] => 2
[3,2,2,5,1] => 1
[3,2,5,1,2] => 1
[3,2,5,2,1] => 1
[3,5,1,2,2] => 0
[3,5,2,1,2] => 0
[3,5,2,2,1] => 0
[5,1,2,2,3] => 0
[5,1,2,3,2] => 0
[5,1,3,2,2] => 1
[5,2,1,2,3] => 1
[5,2,1,3,2] => 1
[5,2,2,1,3] => 1
[5,2,2,3,1] => 1
[5,2,3,1,2] => 2
[5,2,3,2,1] => 2
[5,3,1,2,2] => 0
[5,3,2,1,2] => 0
[5,3,2,2,1] => 0
[1,2,2,4,4] => 3
[1,2,4,2,4] => 2
[1,2,4,4,2] => 3
[1,4,2,2,4] => 1
[1,4,2,4,2] => 2
[1,4,4,2,2] => 1
[2,1,2,4,4] => 1
[2,1,4,2,4] => 0
[2,1,4,4,2] => 1
[2,2,1,4,4] => 2
[2,2,4,1,4] => 1
[2,2,4,4,1] => 2
[2,4,1,2,4] => 0
[2,4,1,4,2] => 1
[2,4,2,1,4] => 0
[2,4,2,4,1] => 1
[2,4,4,1,2] => 0
[2,4,4,2,1] => 0
[4,1,2,2,4] => 0
[4,1,2,4,2] => 1
[4,1,4,2,2] => 0
[4,2,1,2,4] => 1
[4,2,1,4,2] => 2
[4,2,2,1,4] => 1
[4,2,2,4,1] => 2
[4,2,4,1,2] => 1
[4,2,4,2,1] => 1
[4,4,1,2,2] => 0
[4,4,2,1,2] => 0
[4,4,2,2,1] => 0
[1,2,2,4,5] => 4
[1,2,2,5,4] => 2
[1,2,4,2,5] => 3
[1,2,4,5,2] => 2
[1,2,5,2,4] => 2
[1,2,5,4,2] => 3
[1,4,2,2,5] => 2
[1,4,2,5,2] => 1
[1,4,5,2,2] => 1
[1,5,2,2,4] => 1
[1,5,2,4,2] => 2
[1,5,4,2,2] => 1
[2,1,2,4,5] => 2
[2,1,2,5,4] => 0
[2,1,4,2,5] => 1
[2,1,4,5,2] => 0
[2,1,5,2,4] => 0
[2,1,5,4,2] => 1
[2,2,1,4,5] => 3
[2,2,1,5,4] => 1
[2,2,4,1,5] => 2
[2,2,4,5,1] => 1
[2,2,5,1,4] => 1
[2,2,5,4,1] => 2
[2,4,1,2,5] => 1
[2,4,1,5,2] => 0
[2,4,2,1,5] => 1
[2,4,2,5,1] => 0
[2,4,5,1,2] => 0
[2,4,5,2,1] => 0
[2,5,1,2,4] => 0
[2,5,1,4,2] => 1
[2,5,2,1,4] => 0
[2,5,2,4,1] => 1
[2,5,4,1,2] => 0
[2,5,4,2,1] => 0
[4,1,2,2,5] => 1
[4,1,2,5,2] => 0
[4,1,5,2,2] => 0
[4,2,1,2,5] => 2
[4,2,1,5,2] => 1
[4,2,2,1,5] => 2
[4,2,2,5,1] => 1
[4,2,5,1,2] => 1
[4,2,5,2,1] => 1
[4,5,1,2,2] => 0
[4,5,2,1,2] => 0
[4,5,2,2,1] => 0
[5,1,2,2,4] => 0
[5,1,2,4,2] => 1
[5,1,4,2,2] => 0
[5,2,1,2,4] => 1
[5,2,1,4,2] => 2
[5,2,2,1,4] => 1
[5,2,2,4,1] => 2
[5,2,4,1,2] => 1
[5,2,4,2,1] => 1
[5,4,1,2,2] => 0
[5,4,2,1,2] => 0
[5,4,2,2,1] => 0
[1,2,3,3,3] => 3
[1,3,2,3,3] => 1
[1,3,3,2,3] => 2
[1,3,3,3,2] => 2
[2,1,3,3,3] => 1
[2,3,1,3,3] => 0
[2,3,3,1,3] => 1
[2,3,3,3,1] => 1
[3,1,2,3,3] => 0
[3,1,3,2,3] => 1
[3,1,3,3,2] => 1
[3,2,1,3,3] => 1
[3,2,3,1,3] => 2
[3,2,3,3,1] => 2
[3,3,1,2,3] => 0
[3,3,1,3,2] => 0
[3,3,2,1,3] => 0
[3,3,2,3,1] => 0
[3,3,3,1,2] => 1
[3,3,3,2,1] => 1
[1,2,3,3,4] => 3
[1,2,3,4,3] => 4
[1,2,4,3,3] => 2
[1,3,2,3,4] => 1
[1,3,2,4,3] => 2
[1,3,3,2,4] => 2
[1,3,3,4,2] => 3
[1,3,4,2,3] => 1
[1,3,4,3,2] => 1
[1,4,2,3,3] => 1
[1,4,3,2,3] => 2
[1,4,3,3,2] => 2
[2,1,3,3,4] => 1
[2,1,3,4,3] => 2
[2,1,4,3,3] => 0
[2,3,1,3,4] => 0
[2,3,1,4,3] => 1
[2,3,3,1,4] => 1
[2,3,3,4,1] => 2
[2,3,4,1,3] => 0
[2,3,4,3,1] => 0
[2,4,1,3,3] => 0
[2,4,3,1,3] => 1
[2,4,3,3,1] => 1
[3,1,2,3,4] => 0
[3,1,2,4,3] => 1
[3,1,3,2,4] => 1
[3,1,3,4,2] => 2
[3,1,4,2,3] => 0
[3,1,4,3,2] => 0
[3,2,1,3,4] => 1
[3,2,1,4,3] => 2
[3,2,3,1,4] => 2
[3,2,3,4,1] => 3
[3,2,4,1,3] => 1
[3,2,4,3,1] => 1
[3,3,1,2,4] => 0
[3,3,1,4,2] => 1
[3,3,2,1,4] => 0
[3,3,2,4,1] => 1
[3,3,4,1,2] => 0
[3,3,4,2,1] => 0
[3,4,1,2,3] => 0
[3,4,1,3,2] => 0
[3,4,2,1,3] => 0
[3,4,2,3,1] => 0
[3,4,3,1,2] => 1
[3,4,3,2,1] => 1
[4,1,2,3,3] => 0
[4,1,3,2,3] => 1
[4,1,3,3,2] => 1
[4,2,1,3,3] => 1
[4,2,3,1,3] => 2
[4,2,3,3,1] => 2
[4,3,1,2,3] => 0
[4,3,1,3,2] => 0
[4,3,2,1,3] => 0
[4,3,2,3,1] => 0
[4,3,3,1,2] => 1

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Created: Jun 08, 2023 at 09:00 by Martin Rubey

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Last Updated: Jun 15, 2023 at 14:41 by Martin Rubey