Identifier
- St000765: Integer compositions ⟶ ℤ
Values
=>
[1]=>1
[1,1]=>2
[2]=>1
[1,1,1]=>3
[1,2]=>2
[2,1]=>1
[3]=>1
[1,1,1,1]=>4
[1,1,2]=>3
[1,2,1]=>2
[1,3]=>2
[2,1,1]=>1
[2,2]=>2
[3,1]=>1
[4]=>1
[1,1,1,1,1]=>5
[1,1,1,2]=>4
[1,1,2,1]=>3
[1,1,3]=>3
[1,2,1,1]=>2
[1,2,2]=>3
[1,3,1]=>2
[1,4]=>2
[2,1,1,1]=>1
[2,1,2]=>2
[2,2,1]=>2
[2,3]=>2
[3,1,1]=>1
[3,2]=>1
[4,1]=>1
[5]=>1
[1,1,1,1,1,1]=>6
[1,1,1,1,2]=>5
[1,1,1,2,1]=>4
[1,1,1,3]=>4
[1,1,2,1,1]=>3
[1,1,2,2]=>4
[1,1,3,1]=>3
[1,1,4]=>3
[1,2,1,1,1]=>2
[1,2,1,2]=>3
[1,2,2,1]=>3
[1,2,3]=>3
[1,3,1,1]=>2
[1,3,2]=>2
[1,4,1]=>2
[1,5]=>2
[2,1,1,1,1]=>1
[2,1,1,2]=>2
[2,1,2,1]=>2
[2,1,3]=>2
[2,2,1,1]=>2
[2,2,2]=>3
[2,3,1]=>2
[2,4]=>2
[3,1,1,1]=>1
[3,1,2]=>1
[3,2,1]=>1
[3,3]=>2
[4,1,1]=>1
[4,2]=>1
[5,1]=>1
[6]=>1
[1,1,1,1,1,1,1]=>7
[1,1,1,1,1,2]=>6
[1,1,1,1,2,1]=>5
[1,1,1,1,3]=>5
[1,1,1,2,1,1]=>4
[1,1,1,2,2]=>5
[1,1,1,3,1]=>4
[1,1,1,4]=>4
[1,1,2,1,1,1]=>3
[1,1,2,1,2]=>4
[1,1,2,2,1]=>4
[1,1,2,3]=>4
[1,1,3,1,1]=>3
[1,1,3,2]=>3
[1,1,4,1]=>3
[1,1,5]=>3
[1,2,1,1,1,1]=>2
[1,2,1,1,2]=>3
[1,2,1,2,1]=>3
[1,2,1,3]=>3
[1,2,2,1,1]=>3
[1,2,2,2]=>4
[1,2,3,1]=>3
[1,2,4]=>3
[1,3,1,1,1]=>2
[1,3,1,2]=>2
[1,3,2,1]=>2
[1,3,3]=>3
[1,4,1,1]=>2
[1,4,2]=>2
[1,5,1]=>2
[1,6]=>2
[2,1,1,1,1,1]=>1
[2,1,1,1,2]=>2
[2,1,1,2,1]=>2
[2,1,1,3]=>2
[2,1,2,1,1]=>2
[2,1,2,2]=>3
[2,1,3,1]=>2
[2,1,4]=>2
[2,2,1,1,1]=>2
[2,2,1,2]=>3
[2,2,2,1]=>3
[2,2,3]=>3
[2,3,1,1]=>2
[2,3,2]=>2
[2,4,1]=>2
[2,5]=>2
[3,1,1,1,1]=>1
[3,1,1,2]=>1
[3,1,2,1]=>1
[3,1,3]=>2
[3,2,1,1]=>1
[3,2,2]=>1
[3,3,1]=>2
[3,4]=>2
[4,1,1,1]=>1
[4,1,2]=>1
[4,2,1]=>1
[4,3]=>1
[5,1,1]=>1
[5,2]=>1
[6,1]=>1
[7]=>1
[1,1,1,1,1,1,1,1]=>8
[1,1,1,1,1,1,2]=>7
[1,1,1,1,1,2,1]=>6
[1,1,1,1,1,3]=>6
[1,1,1,1,2,1,1]=>5
[1,1,1,1,2,2]=>6
[1,1,1,1,3,1]=>5
[1,1,1,1,4]=>5
[1,1,1,2,1,1,1]=>4
[1,1,1,2,1,2]=>5
[1,1,1,2,2,1]=>5
[1,1,1,2,3]=>5
[1,1,1,3,1,1]=>4
[1,1,1,3,2]=>4
[1,1,1,4,1]=>4
[1,1,1,5]=>4
[1,1,2,1,1,1,1]=>3
[1,1,2,1,1,2]=>4
[1,1,2,1,2,1]=>4
[1,1,2,1,3]=>4
[1,1,2,2,1,1]=>4
[1,1,2,2,2]=>5
[1,1,2,3,1]=>4
[1,1,2,4]=>4
[1,1,3,1,1,1]=>3
[1,1,3,1,2]=>3
[1,1,3,2,1]=>3
[1,1,3,3]=>4
[1,1,4,1,1]=>3
[1,1,4,2]=>3
[1,1,5,1]=>3
[1,1,6]=>3
[1,2,1,1,1,1,1]=>2
[1,2,1,1,1,2]=>3
[1,2,1,1,2,1]=>3
[1,2,1,1,3]=>3
[1,2,1,2,1,1]=>3
[1,2,1,2,2]=>4
[1,2,1,3,1]=>3
[1,2,1,4]=>3
[1,2,2,1,1,1]=>3
[1,2,2,1,2]=>4
[1,2,2,2,1]=>4
[1,2,2,3]=>4
[1,2,3,1,1]=>3
[1,2,3,2]=>3
[1,2,4,1]=>3
[1,2,5]=>3
[1,3,1,1,1,1]=>2
[1,3,1,1,2]=>2
[1,3,1,2,1]=>2
[1,3,1,3]=>3
[1,3,2,1,1]=>2
[1,3,2,2]=>2
[1,3,3,1]=>3
[1,3,4]=>3
[1,4,1,1,1]=>2
[1,4,1,2]=>2
[1,4,2,1]=>2
[1,4,3]=>2
[1,5,1,1]=>2
[1,5,2]=>2
[1,6,1]=>2
[1,7]=>2
[2,1,1,1,1,1,1]=>1
[2,1,1,1,1,2]=>2
[2,1,1,1,2,1]=>2
[2,1,1,1,3]=>2
[2,1,1,2,1,1]=>2
[2,1,1,2,2]=>3
[2,1,1,3,1]=>2
[2,1,1,4]=>2
[2,1,2,1,1,1]=>2
[2,1,2,1,2]=>3
[2,1,2,2,1]=>3
[2,1,2,3]=>3
[2,1,3,1,1]=>2
[2,1,3,2]=>2
[2,1,4,1]=>2
[2,1,5]=>2
[2,2,1,1,1,1]=>2
[2,2,1,1,2]=>3
[2,2,1,2,1]=>3
[2,2,1,3]=>3
[2,2,2,1,1]=>3
[2,2,2,2]=>4
[2,2,3,1]=>3
[2,2,4]=>3
[2,3,1,1,1]=>2
[2,3,1,2]=>2
[2,3,2,1]=>2
[2,3,3]=>3
[2,4,1,1]=>2
[2,4,2]=>2
[2,5,1]=>2
[2,6]=>2
[3,1,1,1,1,1]=>1
[3,1,1,1,2]=>1
[3,1,1,2,1]=>1
[3,1,1,3]=>2
[3,1,2,1,1]=>1
[3,1,2,2]=>1
[3,1,3,1]=>2
[3,1,4]=>2
[3,2,1,1,1]=>1
[3,2,1,2]=>1
[3,2,2,1]=>1
[3,2,3]=>2
[3,3,1,1]=>2
[3,3,2]=>2
[3,4,1]=>2
[3,5]=>2
[4,1,1,1,1]=>1
[4,1,1,2]=>1
[4,1,2,1]=>1
[4,1,3]=>1
[4,2,1,1]=>1
[4,2,2]=>1
[4,3,1]=>1
[4,4]=>2
[5,1,1,1]=>1
[5,1,2]=>1
[5,2,1]=>1
[5,3]=>1
[6,1,1]=>1
[6,2]=>1
[7,1]=>1
[8]=>1
[1,1,1,1,1,1,1,1,1]=>9
[1,1,1,1,1,1,1,2]=>8
[1,1,1,1,1,1,2,1]=>7
[1,1,1,1,1,1,3]=>7
[1,1,1,1,1,2,1,1]=>6
[1,1,1,1,1,2,2]=>7
[1,1,1,1,1,3,1]=>6
[1,1,1,1,1,4]=>6
[1,1,1,1,2,1,1,1]=>5
[1,1,1,1,2,1,2]=>6
[1,1,1,1,2,2,1]=>6
[1,1,1,1,2,3]=>6
[1,1,1,1,3,1,1]=>5
[1,1,1,1,3,2]=>5
[1,1,1,1,4,1]=>5
[1,1,1,1,5]=>5
[1,1,1,2,1,1,1,1]=>4
[1,1,1,2,1,1,2]=>5
[1,1,1,2,1,2,1]=>5
[1,1,1,2,1,3]=>5
[1,1,1,2,2,1,1]=>5
[1,1,1,2,2,2]=>6
[1,1,1,2,3,1]=>5
[1,1,1,2,4]=>5
[1,1,1,3,1,1,1]=>4
[1,1,1,3,1,2]=>4
[1,1,1,3,2,1]=>4
[1,1,1,3,3]=>5
[1,1,1,4,1,1]=>4
[1,1,1,4,2]=>4
[1,1,1,5,1]=>4
[1,1,1,6]=>4
[1,1,2,1,1,1,1,1]=>3
[1,1,2,1,1,1,2]=>4
[1,1,2,1,1,2,1]=>4
[1,1,2,1,1,3]=>4
[1,1,2,1,2,1,1]=>4
[1,1,2,1,2,2]=>5
[1,1,2,1,3,1]=>4
[1,1,2,1,4]=>4
[1,1,2,2,1,1,1]=>4
[1,1,2,2,1,2]=>5
[1,1,2,2,2,1]=>5
[1,1,2,2,3]=>5
[1,1,2,3,1,1]=>4
[1,1,2,3,2]=>4
[1,1,2,4,1]=>4
[1,1,2,5]=>4
[1,1,3,1,1,1,1]=>3
[1,1,3,1,1,2]=>3
[1,1,3,1,2,1]=>3
[1,1,3,1,3]=>4
[1,1,3,2,1,1]=>3
[1,1,3,2,2]=>3
[1,1,3,3,1]=>4
[1,1,3,4]=>4
[1,1,4,1,1,1]=>3
[1,1,4,1,2]=>3
[1,1,4,2,1]=>3
[1,1,4,3]=>3
[1,1,5,1,1]=>3
[1,1,5,2]=>3
[1,1,6,1]=>3
[1,1,7]=>3
[1,2,1,1,1,1,1,1]=>2
[1,2,1,1,1,1,2]=>3
[1,2,1,1,1,2,1]=>3
[1,2,1,1,1,3]=>3
[1,2,1,1,2,1,1]=>3
[1,2,1,1,2,2]=>4
[1,2,1,1,3,1]=>3
[1,2,1,1,4]=>3
[1,2,1,2,1,1,1]=>3
[1,2,1,2,1,2]=>4
[1,2,1,2,2,1]=>4
[1,2,1,2,3]=>4
[1,2,1,3,1,1]=>3
[1,2,1,3,2]=>3
[1,2,1,4,1]=>3
[1,2,1,5]=>3
[1,2,2,1,1,1,1]=>3
[1,2,2,1,1,2]=>4
[1,2,2,1,2,1]=>4
[1,2,2,1,3]=>4
[1,2,2,2,1,1]=>4
[1,2,2,2,2]=>5
[1,2,2,3,1]=>4
[1,2,2,4]=>4
[1,2,3,1,1,1]=>3
[1,2,3,1,2]=>3
[1,2,3,2,1]=>3
[1,2,3,3]=>4
[1,2,4,1,1]=>3
[1,2,4,2]=>3
[1,2,5,1]=>3
[1,2,6]=>3
[1,3,1,1,1,1,1]=>2
[1,3,1,1,1,2]=>2
[1,3,1,1,2,1]=>2
[1,3,1,1,3]=>3
[1,3,1,2,1,1]=>2
[1,3,1,2,2]=>2
[1,3,1,3,1]=>3
[1,3,1,4]=>3
[1,3,2,1,1,1]=>2
[1,3,2,1,2]=>2
[1,3,2,2,1]=>2
[1,3,2,3]=>3
[1,3,3,1,1]=>3
[1,3,3,2]=>3
[1,3,4,1]=>3
[1,3,5]=>3
[1,4,1,1,1,1]=>2
[1,4,1,1,2]=>2
[1,4,1,2,1]=>2
[1,4,1,3]=>2
[1,4,2,1,1]=>2
[1,4,2,2]=>2
[1,4,3,1]=>2
[1,4,4]=>3
[1,5,1,1,1]=>2
[1,5,1,2]=>2
[1,5,2,1]=>2
[1,5,3]=>2
[1,6,1,1]=>2
[1,6,2]=>2
[1,7,1]=>2
[1,8]=>2
[2,1,1,1,1,1,1,1]=>1
[2,1,1,1,1,1,2]=>2
[2,1,1,1,1,2,1]=>2
[2,1,1,1,1,3]=>2
[2,1,1,1,2,1,1]=>2
[2,1,1,1,2,2]=>3
[2,1,1,1,3,1]=>2
[2,1,1,1,4]=>2
[2,1,1,2,1,1,1]=>2
[2,1,1,2,1,2]=>3
[2,1,1,2,2,1]=>3
[2,1,1,2,3]=>3
[2,1,1,3,1,1]=>2
[2,1,1,3,2]=>2
[2,1,1,4,1]=>2
[2,1,1,5]=>2
[2,1,2,1,1,1,1]=>2
[2,1,2,1,1,2]=>3
[2,1,2,1,2,1]=>3
[2,1,2,1,3]=>3
[2,1,2,2,1,1]=>3
[2,1,2,2,2]=>4
[2,1,2,3,1]=>3
[2,1,2,4]=>3
[2,1,3,1,1,1]=>2
[2,1,3,1,2]=>2
[2,1,3,2,1]=>2
[2,1,3,3]=>3
[2,1,4,1,1]=>2
[2,1,4,2]=>2
[2,1,5,1]=>2
[2,1,6]=>2
[2,2,1,1,1,1,1]=>2
[2,2,1,1,1,2]=>3
[2,2,1,1,2,1]=>3
[2,2,1,1,3]=>3
[2,2,1,2,1,1]=>3
[2,2,1,2,2]=>4
[2,2,1,3,1]=>3
[2,2,1,4]=>3
[2,2,2,1,1,1]=>3
[2,2,2,1,2]=>4
[2,2,2,2,1]=>4
[2,2,2,3]=>4
[2,2,3,1,1]=>3
[2,2,3,2]=>3
[2,2,4,1]=>3
[2,2,5]=>3
[2,3,1,1,1,1]=>2
[2,3,1,1,2]=>2
[2,3,1,2,1]=>2
[2,3,1,3]=>3
[2,3,2,1,1]=>2
[2,3,2,2]=>2
[2,3,3,1]=>3
[2,3,4]=>3
[2,4,1,1,1]=>2
[2,4,1,2]=>2
[2,4,2,1]=>2
[2,4,3]=>2
[2,5,1,1]=>2
[2,5,2]=>2
[2,6,1]=>2
[2,7]=>2
[3,1,1,1,1,1,1]=>1
[3,1,1,1,1,2]=>1
[3,1,1,1,2,1]=>1
[3,1,1,1,3]=>2
[3,1,1,2,1,1]=>1
[3,1,1,2,2]=>1
[3,1,1,3,1]=>2
[3,1,1,4]=>2
[3,1,2,1,1,1]=>1
[3,1,2,1,2]=>1
[3,1,2,2,1]=>1
[3,1,2,3]=>2
[3,1,3,1,1]=>2
[3,1,3,2]=>2
[3,1,4,1]=>2
[3,1,5]=>2
[3,2,1,1,1,1]=>1
[3,2,1,1,2]=>1
[3,2,1,2,1]=>1
[3,2,1,3]=>2
[3,2,2,1,1]=>1
[3,2,2,2]=>1
[3,2,3,1]=>2
[3,2,4]=>2
[3,3,1,1,1]=>2
[3,3,1,2]=>2
[3,3,2,1]=>2
[3,3,3]=>3
[3,4,1,1]=>2
[3,4,2]=>2
[3,5,1]=>2
[3,6]=>2
[4,1,1,1,1,1]=>1
[4,1,1,1,2]=>1
[4,1,1,2,1]=>1
[4,1,1,3]=>1
[4,1,2,1,1]=>1
[4,1,2,2]=>1
[4,1,3,1]=>1
[4,1,4]=>2
[4,2,1,1,1]=>1
[4,2,1,2]=>1
[4,2,2,1]=>1
[4,2,3]=>1
[4,3,1,1]=>1
[4,3,2]=>1
[4,4,1]=>2
[4,5]=>2
[5,1,1,1,1]=>1
[5,1,1,2]=>1
[5,1,2,1]=>1
[5,1,3]=>1
[5,2,1,1]=>1
[5,2,2]=>1
[5,3,1]=>1
[5,4]=>1
[6,1,1,1]=>1
[6,1,2]=>1
[6,2,1]=>1
[6,3]=>1
[7,1,1]=>1
[7,2]=>1
[8,1]=>1
[9]=>1
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Description
The number of weak records in an integer composition.
A weak record is an element $a_i$ such that $a_i \geq a_j$ for all $j < i$.
A weak record is an element $a_i$ such that $a_i \geq a_j$ for all $j < i$.
References
[1] Knopfmacher, A., Mansour, T. Record statistics in integer compositions MathSciNet:2721540
Code
def statistic(pi): pi = list(pi) i = 0 res = 0 for j in range(len(pi)): if pi[j] >= i: i = pi[j] res += 1 return res
Created
Apr 08, 2017 at 21:58 by Martin Rubey
Updated
Nov 19, 2017 at 22:06 by Christian Stump
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