k[1] = 1/2
k[2] = 1
k[3] = 1
k[4] = 1
k[5] = 2
k[6] = 1
k[7] = 13/2
k[8] = 1/10
k[9] = 39/2
k[10] = 1/5
k[11] = 1/5
k[12] = 3/10
k[13] = 1
k[14] = 10
k[15] = 5/2
k[16] = 80
k[17] = 1
k[18] = 2/5
k[19] = 4
k[20] = 1/10
k[21] = 1000
k[22] = 0
k[23] = 9/25