k[1] = 1
k[2] = 627/10000
k[3] = 5111/5000
k[4] = 37037/2500
k[5] = 22047/10000
k[6] = 423/5000
k[7] = 163647/10000
k[8] = 221/10000
k[9] = 27893/10000
k[10] = 193743/10000
k[11] = 386891/500
k[12] = 479/10000
k[13] = 0
k[14] = 367/5000
k[15] = 74237/10000
k[16] = 2023/2500
k[17] = 53/10000
k[18] = 2641/2000
k[19] = 4967/1000
k[20] = 1
k[21] = 1