k[1] = 1
k[2] = 1
k[3] = 1
k[4] = 1
k[5] = 1
k[6] = 3/200
k[7] = 3/250
k[8] = 31/10
k[9] = 1/200
k[10] = 25
k[11] = 13/200
k[12] = 11/500
k[13] = 1/2
k[14] = 1
k[15] = 1/2
k[16] = 3/2
k[17] = 53/2000
k[18] = 169/1000
k[19] = 1/10
k[20] = 0
k[21] = 0
k[23] = 1/2
k[22] = 0