k[1] = 21/50
k[2] = 1/200
k[3] = 21/50
k[4] = 1/200
k[5] = 23/1000
k[6] = 23/4000
k[7] = 7/200
k[8] = 23/1000
k[9] = 9/25000
k[10] = 7/500
k[11] = 13/1000
k[12] = 7/200
k[13] = 7/200
k[14] = 7/200
k[15] = 37
k[16] = 9/500
k[17] = 99/1000
k[18] = 11/2
k[19] = 1
k[20] = 799999699/10000000
k[21] = 2000003/100000