k[1] = 44/5
k[2] = 4/25
k[3] = 1
k[4] = 1/5
k[5] = 7/20
k[6] = 3/2500
k[7] = 2/625
k[8] = 1/10
k[9] = 1000
k[10] = 3
k[11] = 10
k[12] = 93/10
k[13] = 3
k[14] = 729000000000/729000000001
k[15] = 1