k[1] = 9/50
k[2] = 23/5
k[3] = 101/1000
k[4] = 1/125
k[5] = 3/2
k[6] = 1/5
k[7] = 3/10
k[8] = 7/5
k[9] = 103/2500
k[10] = 3/10
k[11] = 1/20
k[12] = 9/20
k[13] = 3/100
k[14] = 2/5
k[15] = 3/10
k[16] = 7/20
k[17] = 3/10
k[18] = 1/2
k[19] = 1