Identifier
-
Mp00037:
Graphs
—to partition of connected components⟶
Integer partitions
Mp00202: Integer partitions —first row removal⟶ Integer partitions
Mp00202: Integer partitions —first row removal⟶ Integer partitions
St001657: Integer partitions ⟶ ℤ
Values
([],3) => [1,1,1] => [1,1] => [1] => 0
([],4) => [1,1,1,1] => [1,1,1] => [1,1] => 0
([(2,3)],4) => [2,1,1] => [1,1] => [1] => 0
([],5) => [1,1,1,1,1] => [1,1,1,1] => [1,1,1] => 0
([(3,4)],5) => [2,1,1,1] => [1,1,1] => [1,1] => 0
([(2,4),(3,4)],5) => [3,1,1] => [1,1] => [1] => 0
([(1,4),(2,3)],5) => [2,2,1] => [2,1] => [1] => 0
([(2,3),(2,4),(3,4)],5) => [3,1,1] => [1,1] => [1] => 0
([],6) => [1,1,1,1,1,1] => [1,1,1,1,1] => [1,1,1,1] => 0
([(4,5)],6) => [2,1,1,1,1] => [1,1,1,1] => [1,1,1] => 0
([(3,5),(4,5)],6) => [3,1,1,1] => [1,1,1] => [1,1] => 0
([(2,5),(3,5),(4,5)],6) => [4,1,1] => [1,1] => [1] => 0
([(2,5),(3,4)],6) => [2,2,1,1] => [2,1,1] => [1,1] => 0
([(2,5),(3,4),(4,5)],6) => [4,1,1] => [1,1] => [1] => 0
([(1,2),(3,5),(4,5)],6) => [3,2,1] => [2,1] => [1] => 0
([(3,4),(3,5),(4,5)],6) => [3,1,1,1] => [1,1,1] => [1,1] => 0
([(2,5),(3,4),(3,5),(4,5)],6) => [4,1,1] => [1,1] => [1] => 0
([(2,4),(2,5),(3,4),(3,5)],6) => [4,1,1] => [1,1] => [1] => 0
([(2,4),(2,5),(3,4),(3,5),(4,5)],6) => [4,1,1] => [1,1] => [1] => 0
([(0,5),(1,4),(2,3)],6) => [2,2,2] => [2,2] => [2] => 1
([(1,2),(3,4),(3,5),(4,5)],6) => [3,2,1] => [2,1] => [1] => 0
([(2,3),(2,4),(2,5),(3,4),(3,5),(4,5)],6) => [4,1,1] => [1,1] => [1] => 0
([],7) => [1,1,1,1,1,1,1] => [1,1,1,1,1,1] => [1,1,1,1,1] => 0
([(5,6)],7) => [2,1,1,1,1,1] => [1,1,1,1,1] => [1,1,1,1] => 0
([(4,6),(5,6)],7) => [3,1,1,1,1] => [1,1,1,1] => [1,1,1] => 0
([(3,6),(4,6),(5,6)],7) => [4,1,1,1] => [1,1,1] => [1,1] => 0
([(2,6),(3,6),(4,6),(5,6)],7) => [5,1,1] => [1,1] => [1] => 0
([(3,6),(4,5)],7) => [2,2,1,1,1] => [2,1,1,1] => [1,1,1] => 0
([(3,6),(4,5),(5,6)],7) => [4,1,1,1] => [1,1,1] => [1,1] => 0
([(2,3),(4,6),(5,6)],7) => [3,2,1,1] => [2,1,1] => [1,1] => 0
([(4,5),(4,6),(5,6)],7) => [3,1,1,1,1] => [1,1,1,1] => [1,1,1] => 0
([(2,6),(3,6),(4,5),(5,6)],7) => [5,1,1] => [1,1] => [1] => 0
([(1,2),(3,6),(4,6),(5,6)],7) => [4,2,1] => [2,1] => [1] => 0
([(3,6),(4,5),(4,6),(5,6)],7) => [4,1,1,1] => [1,1,1] => [1,1] => 0
([(2,6),(3,6),(4,5),(4,6),(5,6)],7) => [5,1,1] => [1,1] => [1] => 0
([(3,5),(3,6),(4,5),(4,6)],7) => [4,1,1,1] => [1,1,1] => [1,1] => 0
([(1,6),(2,6),(3,5),(4,5)],7) => [3,3,1] => [3,1] => [1] => 0
([(2,6),(3,4),(3,5),(4,6),(5,6)],7) => [5,1,1] => [1,1] => [1] => 0
([(3,5),(3,6),(4,5),(4,6),(5,6)],7) => [4,1,1,1] => [1,1,1] => [1,1] => 0
([(2,6),(3,5),(4,5),(4,6),(5,6)],7) => [5,1,1] => [1,1] => [1] => 0
([(2,6),(3,5),(3,6),(4,5),(4,6),(5,6)],7) => [5,1,1] => [1,1] => [1] => 0
([(2,5),(2,6),(3,5),(3,6),(4,5),(4,6)],7) => [5,1,1] => [1,1] => [1] => 0
([(2,5),(2,6),(3,5),(3,6),(4,5),(4,6),(5,6)],7) => [5,1,1] => [1,1] => [1] => 0
([(1,6),(2,5),(3,4)],7) => [2,2,2,1] => [2,2,1] => [2,1] => 1
([(2,6),(3,5),(4,5),(4,6)],7) => [5,1,1] => [1,1] => [1] => 0
([(1,2),(3,6),(4,5),(5,6)],7) => [4,2,1] => [2,1] => [1] => 0
([(0,3),(1,2),(4,6),(5,6)],7) => [3,2,2] => [2,2] => [2] => 1
([(2,3),(4,5),(4,6),(5,6)],7) => [3,2,1,1] => [2,1,1] => [1,1] => 0
([(2,5),(3,4),(3,6),(4,6),(5,6)],7) => [5,1,1] => [1,1] => [1] => 0
([(1,2),(3,6),(4,5),(4,6),(5,6)],7) => [4,2,1] => [2,1] => [1] => 0
([(2,5),(2,6),(3,4),(3,6),(4,6),(5,6)],7) => [5,1,1] => [1,1] => [1] => 0
([(2,5),(2,6),(3,4),(3,6),(4,5)],7) => [5,1,1] => [1,1] => [1] => 0
([(2,3),(2,6),(3,5),(4,5),(4,6),(5,6)],7) => [5,1,1] => [1,1] => [1] => 0
([(2,6),(3,4),(3,5),(4,5),(4,6),(5,6)],7) => [5,1,1] => [1,1] => [1] => 0
([(2,5),(2,6),(3,4),(3,6),(4,5),(4,6),(5,6)],7) => [5,1,1] => [1,1] => [1] => 0
([(1,2),(3,5),(3,6),(4,5),(4,6)],7) => [4,2,1] => [2,1] => [1] => 0
([(1,6),(2,6),(3,4),(3,5),(4,5)],7) => [3,3,1] => [3,1] => [1] => 0
([(1,2),(3,5),(3,6),(4,5),(4,6),(5,6)],7) => [4,2,1] => [2,1] => [1] => 0
([(3,4),(3,5),(3,6),(4,5),(4,6),(5,6)],7) => [4,1,1,1] => [1,1,1] => [1,1] => 0
([(2,6),(3,4),(3,5),(3,6),(4,5),(4,6),(5,6)],7) => [5,1,1] => [1,1] => [1] => 0
([(2,5),(2,6),(3,4),(3,5),(3,6),(4,5),(4,6),(5,6)],7) => [5,1,1] => [1,1] => [1] => 0
([(2,5),(2,6),(3,4),(3,5),(3,6),(4,5),(4,6)],7) => [5,1,1] => [1,1] => [1] => 0
([(2,4),(2,5),(2,6),(3,4),(3,5),(3,6),(4,6),(5,6)],7) => [5,1,1] => [1,1] => [1] => 0
([(2,4),(2,5),(2,6),(3,4),(3,5),(3,6),(4,5),(4,6),(5,6)],7) => [5,1,1] => [1,1] => [1] => 0
([(0,3),(1,2),(4,5),(4,6),(5,6)],7) => [3,2,2] => [2,2] => [2] => 1
([(1,5),(1,6),(2,3),(2,4),(3,4),(5,6)],7) => [3,3,1] => [3,1] => [1] => 0
([(1,2),(3,4),(3,5),(3,6),(4,5),(4,6),(5,6)],7) => [4,2,1] => [2,1] => [1] => 0
([(2,3),(2,4),(2,5),(2,6),(3,4),(3,5),(3,6),(4,5),(4,6),(5,6)],7) => [5,1,1] => [1,1] => [1] => 0
([(4,5),(4,6),(4,7),(5,6),(5,7),(6,7)],8) => [4,1,1,1,1] => [1,1,1,1] => [1,1,1] => 0
([(2,7),(3,7),(4,5),(4,6),(4,7),(5,6),(5,7),(6,7)],8) => [6,1,1] => [1,1] => [1] => 0
([(2,7),(3,6),(3,7),(4,5),(4,6),(4,7),(5,6),(5,7),(6,7)],8) => [6,1,1] => [1,1] => [1] => 0
([(2,6),(2,7),(3,6),(3,7),(4,5),(4,6),(4,7),(5,6),(5,7),(6,7)],8) => [6,1,1] => [1,1] => [1] => 0
([(2,7),(3,7),(4,7),(5,6),(5,7),(6,7)],8) => [6,1,1] => [1,1] => [1] => 0
([(2,7),(3,5),(3,6),(3,7),(4,5),(4,6),(4,7),(5,6),(5,7),(6,7)],8) => [6,1,1] => [1,1] => [1] => 0
([(2,6),(2,7),(3,5),(3,6),(3,7),(4,5),(4,6),(4,7),(5,6),(5,7),(6,7)],8) => [6,1,1] => [1,1] => [1] => 0
([(2,7),(3,7),(4,6),(4,7),(5,6),(5,7),(6,7)],8) => [6,1,1] => [1,1] => [1] => 0
([(2,5),(2,6),(2,7),(3,5),(3,6),(3,7),(4,5),(4,6),(4,7),(5,6),(5,7),(6,7)],8) => [6,1,1] => [1,1] => [1] => 0
([(2,7),(3,6),(3,7),(4,6),(4,7),(5,6),(5,7),(6,7)],8) => [6,1,1] => [1,1] => [1] => 0
([(2,6),(2,7),(3,6),(3,7),(4,6),(4,7),(5,6),(5,7),(6,7)],8) => [6,1,1] => [1,1] => [1] => 0
([(3,7),(4,7),(5,7),(6,7)],8) => [5,1,1,1] => [1,1,1] => [1,1] => 0
([],8) => [1,1,1,1,1,1,1,1] => [1,1,1,1,1,1,1] => [1,1,1,1,1,1] => 0
([(4,7),(5,6)],8) => [2,2,1,1,1,1] => [2,1,1,1,1] => [1,1,1,1] => 0
([(4,7),(5,6),(6,7)],8) => [4,1,1,1,1] => [1,1,1,1] => [1,1,1] => 0
([(4,6),(4,7),(5,6),(5,7)],8) => [4,1,1,1,1] => [1,1,1,1] => [1,1,1] => 0
([(2,7),(3,7),(4,6),(5,6)],8) => [3,3,1,1] => [3,1,1] => [1,1] => 0
([(2,7),(3,6),(4,6),(4,7),(5,6),(5,7)],8) => [6,1,1] => [1,1] => [1] => 0
([(2,6),(2,7),(3,6),(3,7),(4,6),(4,7),(5,6),(5,7)],8) => [6,1,1] => [1,1] => [1] => 0
([(3,6),(3,7),(4,5),(4,7),(5,6),(6,7)],8) => [5,1,1,1] => [1,1,1] => [1,1] => 0
([(2,5),(2,6),(2,7),(3,5),(3,6),(3,7),(4,5),(4,6),(4,7)],8) => [6,1,1] => [1,1] => [1] => 0
([(2,6),(2,7),(3,4),(3,5),(4,5),(6,7)],8) => [3,3,1,1] => [3,1,1] => [1,1] => 0
([(2,3),(4,5),(4,6),(4,7),(5,6),(5,7),(6,7)],8) => [4,2,1,1] => [2,1,1] => [1,1] => 0
([(2,6),(2,7),(3,4),(3,5),(4,5),(4,7),(5,6),(6,7)],8) => [6,1,1] => [1,1] => [1] => 0
([(2,3),(2,7),(3,6),(4,5),(4,6),(4,7),(5,6),(5,7),(6,7)],8) => [6,1,1] => [1,1] => [1] => 0
([(2,5),(2,6),(2,7),(3,4),(3,6),(3,7),(4,6),(4,7),(5,6),(5,7)],8) => [6,1,1] => [1,1] => [1] => 0
([(1,3),(2,3),(4,5),(4,6),(4,7),(5,6),(5,7),(6,7)],8) => [4,3,1] => [3,1] => [1] => 0
([(2,4),(2,5),(2,6),(2,7),(3,4),(3,5),(3,6),(3,7),(4,6),(4,7),(5,6),(5,7)],8) => [6,1,1] => [1,1] => [1] => 0
([(1,2),(1,3),(2,3),(4,5),(4,6),(4,7),(5,6),(5,7),(6,7)],8) => [4,3,1] => [3,1] => [1] => 0
([(0,7),(1,6),(2,5),(3,4)],8) => [2,2,2,2] => [2,2,2] => [2,2] => 2
([(0,3),(1,2),(4,6),(4,7),(5,6),(5,7)],8) => [4,2,2] => [2,2] => [2] => 1
([(0,3),(1,2),(4,6),(4,7),(5,6),(5,7),(6,7)],8) => [4,2,2] => [2,2] => [2] => 1
([(2,7),(3,5),(3,8),(4,6),(4,8),(5,6),(5,7),(6,8),(7,8)],9) => [7,1,1] => [1,1] => [1] => 0
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searching the database for the individual values of this statistic
Description
The number of twos in an integer partition.
The total number of twos in all partitions of $n$ is equal to the total number of singletons St001484The number of singletons of an integer partition. in all partitions of $n-1$, see [1].
The total number of twos in all partitions of $n$ is equal to the total number of singletons St001484The number of singletons of an integer partition. in all partitions of $n-1$, see [1].
Map
first row removal
Description
Removes the first entry of an integer partition
Map
to partition of connected components
Description
Return the partition of the sizes of the connected components of the graph.
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