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Statistic identifier: St000299

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Collection: Graphs

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Description: The number of nonisomorphic vertex-induced subtrees.

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References: [1]   Mubayi, D., Verstraete, J. The number of trees in a graph [[arXiv:1511.07274]]

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Code:
def statistic(G):
    V = G.vertices()
    indSubG = set()
    for subV in Subsets(V):
        subG = G.subgraph(subV)
        if subG.is_tree():
            indSubG.add(subG.canonical_label().copy(immutable=True))
    return len(indSubG)

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Statistic values:

([],1)                                                                                          => 1
([],2)                                                                                          => 1
([(0,1)],2)                                                                                     => 2
([],3)                                                                                          => 1
([(1,2)],3)                                                                                     => 2
([(0,2),(1,2)],3)                                                                               => 3
([(0,1),(0,2),(1,2)],3)                                                                         => 2
([],4)                                                                                          => 1
([(2,3)],4)                                                                                     => 2
([(1,3),(2,3)],4)                                                                               => 3
([(0,3),(1,3),(2,3)],4)                                                                         => 4
([(0,3),(1,2)],4)                                                                               => 2
([(0,3),(1,2),(2,3)],4)                                                                         => 4
([(1,2),(1,3),(2,3)],4)                                                                         => 2
([(0,3),(1,2),(1,3),(2,3)],4)                                                                   => 3
([(0,2),(0,3),(1,2),(1,3)],4)                                                                   => 3
([(0,2),(0,3),(1,2),(1,3),(2,3)],4)                                                             => 3
([(0,1),(0,2),(0,3),(1,2),(1,3),(2,3)],4)                                                       => 2
([],5)                                                                                          => 1
([(3,4)],5)                                                                                     => 2
([(2,4),(3,4)],5)                                                                               => 3
([(1,4),(2,4),(3,4)],5)                                                                         => 4
([(0,4),(1,4),(2,4),(3,4)],5)                                                                   => 5
([(1,4),(2,3)],5)                                                                               => 2
([(1,4),(2,3),(3,4)],5)                                                                         => 4
([(0,1),(2,4),(3,4)],5)                                                                         => 3
([(2,3),(2,4),(3,4)],5)                                                                         => 2
([(0,4),(1,4),(2,3),(3,4)],5)                                                                   => 6
([(1,4),(2,3),(2,4),(3,4)],5)                                                                   => 3
([(0,4),(1,4),(2,3),(2,4),(3,4)],5)                                                             => 4
([(1,3),(1,4),(2,3),(2,4)],5)                                                                   => 3
([(0,4),(1,2),(1,3),(2,4),(3,4)],5)                                                             => 5
([(1,3),(1,4),(2,3),(2,4),(3,4)],5)                                                             => 3
([(0,4),(1,3),(2,3),(2,4),(3,4)],5)                                                             => 4
([(0,4),(1,3),(1,4),(2,3),(2,4),(3,4)],5)                                                       => 4
([(0,3),(0,4),(1,3),(1,4),(2,3),(2,4)],5)                                                       => 4
([(0,3),(0,4),(1,3),(1,4),(2,3),(2,4),(3,4)],5)                                                 => 4
([(0,4),(1,3),(2,3),(2,4)],5)                                                                   => 5
([(0,1),(2,3),(2,4),(3,4)],5)                                                                   => 2
([(0,3),(1,2),(1,4),(2,4),(3,4)],5)                                                             => 4
([(0,3),(0,4),(1,2),(1,4),(2,4),(3,4)],5)                                                       => 3
([(0,3),(0,4),(1,2),(1,4),(2,3)],5)                                                             => 4
([(0,1),(0,4),(1,3),(2,3),(2,4),(3,4)],5)                                                       => 4
([(0,3),(0,4),(1,2),(1,4),(2,3),(2,4),(3,4)],5)                                                 => 4
([(0,4),(1,2),(1,3),(2,3),(2,4),(3,4)],5)                                                       => 4
([(1,2),(1,3),(1,4),(2,3),(2,4),(3,4)],5)                                                       => 2
([(0,4),(1,2),(1,3),(1,4),(2,3),(2,4),(3,4)],5)                                                 => 3
([(0,3),(0,4),(1,2),(1,3),(1,4),(2,3),(2,4),(3,4)],5)                                           => 3
([(0,3),(0,4),(1,2),(1,3),(1,4),(2,3),(2,4)],5)                                                 => 3
([(0,2),(0,3),(0,4),(1,2),(1,3),(1,4),(2,4),(3,4)],5)                                           => 3
([(0,2),(0,3),(0,4),(1,2),(1,3),(1,4),(2,3),(2,4),(3,4)],5)                                     => 3
([(0,1),(0,2),(0,3),(0,4),(1,2),(1,3),(1,4),(2,3),(2,4),(3,4)],5)                               => 2
([],6)                                                                                          => 1
([(4,5)],6)                                                                                     => 2
([(3,5),(4,5)],6)                                                                               => 3
([(2,5),(3,5),(4,5)],6)                                                                         => 4
([(1,5),(2,5),(3,5),(4,5)],6)                                                                   => 5
([(0,5),(1,5),(2,5),(3,5),(4,5)],6)                                                             => 6
([(2,5),(3,4)],6)                                                                               => 2
([(2,5),(3,4),(4,5)],6)                                                                         => 4
([(1,2),(3,5),(4,5)],6)                                                                         => 3
([(3,4),(3,5),(4,5)],6)                                                                         => 2
([(1,5),(2,5),(3,4),(4,5)],6)                                                                   => 6
([(0,1),(2,5),(3,5),(4,5)],6)                                                                   => 4
([(2,5),(3,4),(3,5),(4,5)],6)                                                                   => 3
([(0,5),(1,5),(2,5),(3,4),(4,5)],6)                                                             => 8
([(1,5),(2,5),(3,4),(3,5),(4,5)],6)                                                             => 4
([(0,5),(1,5),(2,5),(3,4),(3,5),(4,5)],6)                                                       => 5
([(2,4),(2,5),(3,4),(3,5)],6)                                                                   => 3
([(0,5),(1,5),(2,4),(3,4)],6)                                                                   => 3
([(1,5),(2,3),(2,4),(3,5),(4,5)],6)                                                             => 5
([(0,5),(1,5),(2,3),(3,4),(4,5)],6)                                                             => 8
([(2,4),(2,5),(3,4),(3,5),(4,5)],6)                                                             => 3
([(1,5),(2,4),(3,4),(3,5),(4,5)],6)                                                             => 4
([(0,5),(1,5),(2,4),(3,4),(4,5)],6)                                                             => 7
([(0,5),(1,5),(2,3),(2,4),(3,5),(4,5)],6)                                                       => 7
([(1,5),(2,4),(2,5),(3,4),(3,5),(4,5)],6)                                                       => 4
([(0,5),(1,5),(2,4),(3,4),(3,5),(4,5)],6)                                                       => 6
([(0,5),(1,5),(2,4),(2,5),(3,4),(3,5),(4,5)],6)                                                 => 5
([(1,4),(1,5),(2,4),(2,5),(3,4),(3,5)],6)                                                       => 4
([(0,5),(1,4),(2,4),(2,5),(3,4),(3,5)],6)                                                       => 6
([(0,5),(1,4),(1,5),(2,4),(2,5),(3,4),(3,5)],6)                                                 => 6
([(1,4),(1,5),(2,4),(2,5),(3,4),(3,5),(4,5)],6)                                                 => 4
([(0,5),(1,4),(2,4),(2,5),(3,4),(3,5),(4,5)],6)                                                 => 5
([(0,5),(1,4),(1,5),(2,4),(2,5),(3,4),(3,5),(4,5)],6)                                           => 5
([(0,4),(0,5),(1,4),(1,5),(2,4),(2,5),(3,4),(3,5)],6)                                           => 5
([(0,4),(0,5),(1,4),(1,5),(2,4),(2,5),(3,4),(3,5),(4,5)],6)                                     => 5
([(0,5),(1,4),(2,3)],6)                                                                         => 2
([(1,5),(2,4),(3,4),(3,5)],6)                                                                   => 5
([(0,1),(2,5),(3,4),(4,5)],6)                                                                   => 4
([(1,2),(3,4),(3,5),(4,5)],6)                                                                   => 2
([(0,5),(1,4),(2,3),(3,5),(4,5)],6)                                                             => 8
([(1,4),(2,3),(2,5),(3,5),(4,5)],6)                                                             => 4
([(0,1),(2,5),(3,4),(3,5),(4,5)],6)                                                             => 3
([(0,4),(1,5),(2,3),(2,5),(3,5),(4,5)],6)                                                       => 6
([(1,4),(1,5),(2,3),(2,5),(3,5),(4,5)],6)                                                       => 3
([(0,5),(1,4),(1,5),(2,3),(2,5),(3,5),(4,5)],6)                                                 => 4
([(1,4),(1,5),(2,3),(2,5),(3,4)],6)                                                             => 4
([(0,5),(1,4),(2,3),(2,4),(3,5),(4,5)],6)                                                       => 6
([(1,2),(1,5),(2,4),(3,4),(3,5),(4,5)],6)                                                       => 4
([(0,5),(1,2),(1,4),(2,3),(3,5),(4,5)],6)                                                       => 7
([(1,5),(2,3),(2,4),(3,4),(3,5),(4,5)],6)                                                       => 4
([(0,5),(1,4),(2,3),(3,4),(3,5),(4,5)],6)                                                       => 4
([(0,5),(1,2),(1,5),(2,4),(3,4),(3,5),(4,5)],6)                                                 => 6
([(0,5),(1,3),(2,4),(2,5),(3,4),(3,5),(4,5)],6)                                                 => 6
([(1,4),(1,5),(2,3),(2,5),(3,4),(3,5),(4,5)],6)                                                 => 4
([(0,5),(1,4),(1,5),(2,3),(2,5),(3,4),(3,5),(4,5)],6)                                           => 5
([(0,5),(1,4),(2,3),(2,4),(3,5)],6)                                                             => 6
([(0,1),(2,4),(2,5),(3,4),(3,5)],6)                                                             => 3
([(0,5),(1,5),(2,3),(2,4),(3,4)],6)                                                             => 3
([(0,4),(1,2),(1,3),(2,5),(3,5),(4,5)],6)                                                       => 7
([(0,4),(1,2),(1,5),(2,5),(3,4),(3,5)],6)                                                       => 5
([(0,4),(1,2),(2,5),(3,4),(3,5),(4,5)],6)                                                       => 5
([(0,1),(2,4),(2,5),(3,4),(3,5),(4,5)],6)                                                       => 3
([(0,4),(1,4),(2,3),(2,5),(3,5),(4,5)],6)                                                       => 6
([(0,3),(0,4),(1,2),(1,5),(2,5),(3,5),(4,5)],6)                                                 => 5
([(0,3),(1,4),(1,5),(2,4),(2,5),(3,5),(4,5)],6)                                                 => 6
([(0,4),(1,2),(1,5),(2,5),(3,4),(3,5),(4,5)],6)                                                 => 4
([(0,1),(0,5),(1,5),(2,4),(2,5),(3,4),(3,5),(4,5)],6)                                           => 4
([(2,3),(2,4),(2,5),(3,4),(3,5),(4,5)],6)                                                       => 2
([(0,5),(1,5),(2,3),(2,4),(3,4),(3,5),(4,5)],6)                                                 => 6
([(1,5),(2,3),(2,4),(2,5),(3,4),(3,5),(4,5)],6)                                                 => 3
([(0,5),(1,5),(2,3),(2,4),(2,5),(3,4),(3,5),(4,5)],6)                                           => 4
([(0,1),(0,5),(1,4),(2,4),(2,5),(3,4),(3,5)],6)                                                 => 6
([(0,3),(0,5),(1,3),(1,5),(2,4),(2,5),(3,4),(4,5)],6)                                           => 6
([(0,3),(1,4),(1,5),(2,4),(2,5),(3,4),(3,5),(4,5)],6)                                           => 6
([(0,5),(1,4),(1,5),(2,3),(2,4),(3,4),(3,5),(4,5)],6)                                           => 6
([(0,1),(0,5),(1,4),(2,4),(2,5),(3,4),(3,5),(4,5)],6)                                           => 6
([(0,4),(0,5),(1,4),(1,5),(2,3),(2,5),(3,4),(3,5),(4,5)],6)                                     => 6
([(0,5),(1,4),(1,5),(2,3),(2,4),(2,5),(3,4),(3,5)],6)                                           => 5
([(1,4),(1,5),(2,3),(2,4),(2,5),(3,4),(3,5),(4,5)],6)                                           => 3
([(0,5),(1,4),(2,3),(2,4),(2,5),(3,4),(3,5),(4,5)],6)                                           => 4
([(0,5),(1,4),(1,5),(2,3),(2,4),(2,5),(3,4),(3,5),(4,5)],6)                                     => 4
([(0,4),(0,5),(1,4),(1,5),(2,3),(2,4),(2,5),(3,4),(3,5)],6)                                     => 4
([(0,4),(0,5),(1,4),(1,5),(2,3),(2,4),(2,5),(3,4),(3,5),(4,5)],6)                               => 4
([(0,5),(1,3),(1,4),(2,3),(2,4),(3,5),(4,5)],6)                                                 => 6
([(1,4),(1,5),(2,3),(2,4),(2,5),(3,4),(3,5)],6)                                                 => 3
([(0,5),(1,3),(1,4),(2,3),(2,4),(2,5),(3,5),(4,5)],6)                                           => 5
([(1,3),(1,4),(1,5),(2,3),(2,4),(2,5),(3,5),(4,5)],6)                                           => 3
([(0,5),(1,3),(1,4),(1,5),(2,3),(2,4),(2,5),(3,5),(4,5)],6)                                     => 4
([(0,4),(0,5),(1,2),(1,3),(2,5),(3,4)],6)                                                       => 5
([(0,3),(0,5),(1,2),(1,5),(2,4),(3,4),(4,5)],6)                                                 => 6
([(0,5),(1,2),(1,4),(2,3),(3,4),(3,5),(4,5)],6)                                                 => 5
([(0,1),(0,2),(1,5),(2,4),(3,4),(3,5),(4,5)],6)                                                 => 5
([(0,5),(1,4),(2,3),(2,4),(2,5),(3,4),(3,5)],6)                                                 => 5
([(0,5),(1,3),(1,4),(2,4),(2,5),(3,4),(3,5)],6)                                                 => 7
([(0,1),(0,5),(1,3),(2,4),(2,5),(3,4),(3,5),(4,5)],6)                                           => 6
([(0,4),(1,3),(1,5),(2,3),(2,4),(2,5),(3,5),(4,5)],6)                                           => 5
([(0,4),(0,5),(1,3),(1,5),(2,3),(2,4),(3,5),(4,5)],6)                                           => 5
([(0,4),(0,5),(1,3),(1,5),(2,3),(2,4),(2,5),(3,5),(4,5)],6)                                     => 6
([(0,4),(0,5),(1,2),(1,3),(2,4),(2,5),(3,4),(3,5)],6)                                           => 5
([(0,5),(1,2),(1,3),(1,4),(2,3),(2,4),(3,5),(4,5)],6)                                           => 5
([(0,4),(0,5),(1,2),(1,3),(1,5),(2,4),(2,5),(3,4),(3,5)],6)                                     => 5
([(0,4),(0,5),(1,2),(1,3),(2,4),(2,5),(3,4),(3,5),(4,5)],6)                                     => 5
([(0,4),(0,5),(1,2),(1,3),(1,5),(2,4),(2,5),(3,4),(3,5),(4,5)],6)                               => 5
([(0,5),(1,2),(1,3),(1,4),(2,4),(2,5),(3,4),(3,5),(4,5)],6)                                     => 5
([(1,3),(1,4),(1,5),(2,3),(2,4),(2,5),(3,4),(3,5),(4,5)],6)                                     => 3
([(0,5),(1,3),(1,4),(2,3),(2,4),(2,5),(3,4),(3,5),(4,5)],6)                                     => 4
([(0,5),(1,3),(1,4),(1,5),(2,3),(2,4),(2,5),(3,4),(3,5),(4,5)],6)                               => 4
([(0,4),(0,5),(1,2),(1,4),(2,3),(2,5),(3,4),(3,5),(4,5)],6)                                     => 5
([(0,4),(0,5),(1,3),(1,5),(2,3),(2,4),(3,4),(3,5),(4,5)],6)                                     => 4
([(0,4),(0,5),(1,3),(1,5),(2,3),(2,4),(2,5),(3,4),(3,5),(4,5)],6)                               => 5
([(0,4),(0,5),(1,3),(1,4),(1,5),(2,3),(2,4),(2,5),(3,4),(3,5),(4,5)],6)                         => 4
([(0,3),(0,4),(0,5),(1,3),(1,4),(1,5),(2,3),(2,4),(2,5)],6)                                     => 4
([(0,1),(0,2),(0,3),(1,4),(1,5),(2,4),(2,5),(3,4),(3,5),(4,5)],6)                               => 4
([(0,4),(0,5),(1,3),(1,4),(1,5),(2,3),(2,4),(2,5),(3,4),(3,5)],6)                               => 4
([(0,3),(0,4),(0,5),(1,3),(1,4),(1,5),(2,3),(2,4),(2,5),(3,5),(4,5)],6)                         => 4
([(0,3),(0,4),(0,5),(1,3),(1,4),(1,5),(2,3),(2,4),(2,5),(3,4),(3,5),(4,5)],6)                   => 4
([(0,4),(0,5),(1,2),(1,3),(2,3),(4,5)],6)                                                       => 2
([(0,2),(1,4),(1,5),(2,3),(3,4),(3,5),(4,5)],6)                                                 => 5
([(0,1),(0,5),(1,5),(2,3),(2,4),(3,4),(4,5)],6)                                                 => 4
([(0,1),(2,3),(2,4),(2,5),(3,4),(3,5),(4,5)],6)                                                 => 2
([(0,1),(0,5),(1,5),(2,3),(2,4),(3,4),(3,5),(4,5)],6)                                           => 4
([(0,1),(1,5),(2,3),(2,4),(2,5),(3,4),(3,5),(4,5)],6)                                           => 4
([(0,1),(0,5),(1,5),(2,3),(2,4),(2,5),(3,4),(3,5),(4,5)],6)                                     => 3
([(0,4),(0,5),(1,2),(1,3),(2,3),(2,5),(3,4),(4,5)],6)                                           => 4
([(0,4),(0,5),(1,2),(1,3),(1,4),(2,3),(2,5),(3,5),(4,5)],6)                                     => 4
([(0,3),(1,2),(1,4),(1,5),(2,4),(2,5),(3,4),(3,5),(4,5)],6)                                     => 4
([(0,3),(0,5),(1,2),(1,4),(2,4),(2,5),(3,4),(3,5),(4,5)],6)                                     => 4
([(0,1),(0,5),(1,4),(2,3),(2,4),(2,5),(3,4),(3,5),(4,5)],6)                                     => 4
([(0,3),(0,5),(1,2),(1,4),(1,5),(2,4),(2,5),(3,4),(3,5),(4,5)],6)                               => 4
([(0,3),(0,4),(0,5),(1,2),(1,4),(1,5),(2,4),(2,5),(3,4),(3,5)],6)                               => 3
([(0,3),(0,4),(0,5),(1,2),(1,4),(1,5),(2,4),(2,5),(3,4),(3,5),(4,5)],6)                         => 3
([(0,4),(0,5),(1,3),(1,5),(2,3),(2,4),(2,5),(3,4)],6)                                           => 5
([(0,1),(0,5),(1,4),(2,3),(2,4),(2,5),(3,4),(3,5)],6)                                           => 4
([(0,3),(0,4),(1,2),(1,4),(1,5),(2,3),(2,5),(3,5),(4,5)],6)                                     => 4
([(0,3),(0,4),(0,5),(1,2),(1,4),(1,5),(2,3),(2,5),(3,5),(4,5)],6)                               => 4
([(0,3),(0,4),(0,5),(1,2),(1,4),(1,5),(2,3),(2,5),(3,4)],6)                                     => 4
([(0,1),(0,3),(0,5),(1,2),(1,4),(2,4),(2,5),(3,4),(3,5),(4,5)],6)                               => 4
([(0,4),(0,5),(1,2),(1,3),(1,5),(2,3),(2,4),(3,4),(3,5),(4,5)],6)                               => 4
([(0,1),(0,4),(0,5),(1,3),(1,5),(2,3),(2,4),(2,5),(3,4),(3,5),(4,5)],6)                         => 4
([(0,3),(0,4),(0,5),(1,2),(1,4),(1,5),(2,3),(2,4),(2,5),(3,4),(3,5),(4,5)],6)                   => 4
([(0,2),(0,5),(1,3),(1,4),(1,5),(2,3),(2,4),(3,4),(3,5),(4,5)],6)                               => 4
([(0,4),(0,5),(1,2),(1,3),(2,3),(2,4),(2,5),(3,4),(3,5),(4,5)],6)                               => 4
([(0,4),(0,5),(1,2),(1,3),(1,5),(2,3),(2,4),(2,5),(3,4),(3,5),(4,5)],6)                         => 4
([(0,5),(1,2),(1,3),(1,4),(2,3),(2,4),(2,5),(3,4),(3,5),(4,5)],6)                               => 4
([(1,2),(1,3),(1,4),(1,5),(2,3),(2,4),(2,5),(3,4),(3,5),(4,5)],6)                               => 2
([(0,5),(1,2),(1,3),(1,4),(1,5),(2,3),(2,4),(2,5),(3,4),(3,5),(4,5)],6)                         => 3
([(0,4),(0,5),(1,2),(1,3),(1,4),(1,5),(2,3),(2,4),(2,5),(3,4),(3,5),(4,5)],6)                   => 3
([(0,3),(0,4),(0,5),(1,2),(1,3),(1,4),(1,5),(2,3),(2,4),(2,5),(3,4),(3,5),(4,5)],6)             => 3
([(0,3),(0,4),(0,5),(1,2),(1,4),(1,5),(2,3),(2,4),(2,5),(3,4),(3,5)],6)                         => 4
([(0,4),(0,5),(1,2),(1,3),(1,4),(1,5),(2,3),(2,4),(2,5),(3,4),(3,5)],6)                         => 3
([(0,1),(0,4),(0,5),(1,2),(1,3),(2,3),(2,4),(2,5),(3,4),(3,5),(4,5)],6)                         => 3
([(0,3),(0,4),(0,5),(1,2),(1,3),(1,4),(1,5),(2,3),(2,4),(2,5),(3,5),(4,5)],6)                   => 3
([(0,2),(0,3),(0,4),(0,5),(1,2),(1,3),(1,4),(1,5),(2,4),(2,5),(3,4),(3,5)],6)                   => 3
([(0,2),(0,3),(0,4),(0,5),(1,2),(1,3),(1,4),(1,5),(2,4),(2,5),(3,4),(3,5),(4,5)],6)             => 3
([(0,2),(0,3),(0,4),(0,5),(1,2),(1,3),(1,4),(1,5),(2,3),(2,4),(2,5),(3,4),(3,5),(4,5)],6)       => 3
([(0,1),(0,2),(0,3),(0,4),(0,5),(1,2),(1,3),(1,4),(1,5),(2,3),(2,4),(2,5),(3,4),(3,5),(4,5)],6) => 2

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Created: Nov 24, 2015 at 17:41 by Christian Stump

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Last Updated: Nov 25, 2015 at 11:11 by Christian Stump