k[1] = 66923076923077/50000000000000
k[2] = 16/5
k[3] = 1/2
k[4] = 23/100
k[5] = 1000
k[6] = 385
k[7] = 77/13
k[8] = 147/550
k[9] = 5/2
k[10] = 460
k[11] = 330
k[12] = 1
k[13] = 2
k[14] = 230
k[15] = 210