k[1] = 431/1000
k[2] = 51/5000000000000000
k[3] = 341/1000000000000
k[4] = 103/2500
k[5] = 3/200
k[6] = 101/5
k[7] = 3/5
k[8] = 3/5
k[9] = 4/5
k[10] = 1/312500000
k[11] = 1/50000000000
k[12] = 12000
k[13] = 750000000
k[14] = 3/250
k[15] = 9/10
k[16] = 9/20
k[17] = 0
k[18] = 1