k[1] = 1
k[2] = 57/10000
k[3] = 39/2500
k[4] = 31/2000
k[5] = 397/5000
k[6] = 907/10000
k[7] = 137/5000
k[8] = 17/80
k[9] = 0
k[10] = 3817/2000
k[11] = 707/10000
k[12] = 1131/10000
k[13] = 1/1250
k[14] = 11/5000
k[15] = 17/5000
k[16] = 159/10000
k[17] = 67/5000
k[18] = 9