−1/4

64/21

2.0182092266958453

0

2

2log2

1/4

64/65

1.018262942376231

1/3

9/7

0.9283476330715509

1/2

16/15

$\frac{4}{3}\left(2-\sqrt{2}\right)$

3/5

25/26

0.7088459262782351

2/3

9/10

0.6660710550945809

3/4

64/77

0.6177469599979266

1

2/3

1/2

3/2

16/35

0.34477152501692165

2

1/3

1/4

5/2

16/63

0.1881653270194103

3

1/5

7/48

4

2/15

3/32

5

2/21

31/480

6

1/14

3/64

7

1/18

127/3584

8

2/45

85/3072

9

2/55

511/23040

10

1/33

93/5120