$l_{\max }$

$B=0.5$

$B=1$

$B=2$

$B=5$

$B=10$

2

4.72835

8.64712

3

4.72832

8.64422

14.18348

4

8.64421

14.18118

24.73659

5

14.18116

24.72723

36.51471

6

24.72698

36.49760

7

36.49677