7 0.779296875 0.65625 0.4384765625 0.6826171875
11 0.3291015625 0.517578125 0.658203125 0.912109375
17 0.4990234375 0.5615234375 0.998046875 0.8720703125
19 0.275390625 0.01953125 0.22265625 0.0390625