k[1] = 1/2
k[2] = 11/100
k[3] = 3/50
k[4] = 1
k[5] = 109/100
k[6] = 307/100
k[7] = 289/100
k[8] = 472
k[9] = 1
k[10] = 15
k[11] = 50
k[12] = 14
k[13] = 1
k[14] = 1/10
k[15] = 3/20
k[16] = 13/100
k[17] = 11/10
k[18] = 2/25
k[19] = 3/10
k[20] = 3/10
k[21] = 1/1000