k1 = 202927753036139/250000000000000000 k2 = 566528253772301/100000000000000000 k3 = 245914295524883/500000000000000000 k4 = 114186392006403/10000000000000000 k5 = 446994772958953/1000000000000000000 k6 = 343995957326369/100000000000000000 k7 = 949914492651531/10000000000000000 k8 = 3304212710223/6250000000000000 k9 = 152252549827479/100000000000000000 k10 = 898496674617627/100000000000000 k11 = 3084375753243/200000000000 k12 = 606420498690851221153086771456000000000000000000000000/123707881288699188718310260341637672344034641294404521 k13 = 1 k14 = 90 k15 = 127 k16 = 224 k17 = 1909 k18 = 1909 k19 = 3316 k20 = 3316