Does anyone know the coefficient table with Dow equal to 30 points? thank you

Division coefficient of circle:

1-0.00000

2- 1.00000

3-0.86603

4-0.707 1 1

5-0.58779

6-0.50000

7-0.43388

8-0.38268

9-0.34202

10-0.30902

1 1-0.28 173

12-0.25882

13-0.23932

14-0.22252

15-0.2079 1

16-0. 19509

17-0. 18375

18-0. 17365

19-0. 16459

20-0. 15643

2 1-0. 14904

22-0. 1423 1

23-0. 136 17

24-0. 13053

25-0. 12533

26-0. 12054

27-0. 1 1609

28-0. 1 1 196

29-0. 108 12

30-0. 10453