N= 25 f= 23.575000 1 1 2 1 3 1 4 1 5 0 6 0 7 1 8 0 9 0 10 0 11 0 12 0 13 0 14 1 15 1 16 1 17 0 18 0 19 0 20 1 21 1 22 1 23 0 24 1 25 0