k[1] = 2
k[2] = 9/10
k[3] = 5/2
k[4] = 3/2
k[5] = 3/5
k[6] = 4/5
k[7] = 1
k[8] = 13/10
k[9] = 3/10
k[10] = 4/5
k[11] = 7/10
k[12] = 49/10
k[13] = 23
k[14] = 9/2
k[15] = 1