k[1] = 1
k[2] = 11/20
k[3] = 6/5
k[4] = 2/625
k[5] = 19/5000
k[6] = 7/4
k[7] = 3/2000
k[8] = 17/10000
k[9] = 143/100
k[10] = 3/2000
k[11] = 3/20
k[12] = 59/25
k[13] = 49/10
k[14] = 23/20
k[15] = 1/10
k[16] = 1/4