N= 25 f= 19.947000 1 1 2 0 3 0 4 0 5 1 6 1 7 0 8 1 9 0 10 0 11 0 12 1 13 0 14 1 15 0 16 0 17 1 18 0 19 1 20 0 21 0 22 1 23 0 24 0 25 1