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Table 1 The number of trees, the number of spectra for the generalized Laplacian (GLS), and the number of spectra for the distance matrix (DS).

From: Ubiquity of synonymity: almost all large binary trees are not uniquely identified by their spectra or their immanantal polynomials

leaves

trees

GLS

DS

2

1

1

1

3

1

1

1

4

2

2

2

5

3

3

3

6

6

6

6

7

11

11

11

8

23

22

23

9

46

45

46

10

98

95

98

11

207

203

207

12

451

443

451

13

983

972

983

14

2179

2159

2179

15

4850

4827

4850

16

10905

10870

10905

17

24631

24580

24630

18

56011

55931

56009

19

127912

127830

127908

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Algorithms for Molecular Biology

ISSN: 1748-7188