N= 30  f= 17.236667
1   1
2   1
3   0
4   0
5   0
6   0
7   0
8   1
9   0
10   0
11   1
12   1
13   0
14   1
15   1
16   0
17   0
18   0
19   0
20   0
21   1
22   0
23   0
24   0
25   0
26   0
27   1
28   0
29   0
30   0