$l_{\max }$

$B=0.5$

$B=1$

$B=2$

$B=5$

$B=10$

2

11.82175

3

11.80849

14.74603

4

11.80843

14.74394

19.38923

5

14.74393

19.38851

29.34678

6

19.38851

29.34457

40.89607

7

29.34452

40.89215