k1 = 49/100
k2 = 33/4000
k3 = 49/100
k4 = 39/1000
k5 = 49/100
k6 = 51/20000
k7 = 1/20
k8 = 57/200
k9 = 1539/40000
k10 = 1000
k11 = 161748444208580999830987622553/625000000000000000000000000000000000000
k12 = 140768899397323707598838310717/312500000000000000000000000000000000000
k13 = 307486018809704269108625487579/1250000000000000000000000000000000000000
k14 = 419330357910815252818554005511/1250000000000000000000000000000000000000
k15 = 2514875231277655924058084781/125000000000000000000000000000000000000
k16 = 39140897525066497167566173629/156250000000000000000000000000000000000
k17 = 1097138525216929790515637871/62500000000000000000000000000000000000
k18 = 7804030852225624930379480553/250000000000000000000000000000000000000