n=0 : 1.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 n=1 : 1.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 n=2 : 0.50000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 n=3 : 0.16666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666 n=4 : 0.04166666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666 n=5 : 0.00833333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333 n=6 : 0.00138888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888 n=7 : 0.00019841269841269841269841269841269841269841269841269841269841269841269841269841269841269841269841269 n=8 : 0.00002480158730158730158730158730158730158730158730158730158730158730158730158730158730158730158730158 n=9 : 0.00000275573192239858906525573192239858906525573192239858906525573192239858906525573192239858906525573 n=10 : 0.00000027557319223985890652557319223985890652557319223985890652557319223985890652557319223985890652557 n=11 : 0.00000002505210838544171877505210838544171877505210838544171877505210838544171877505210838544171877505 n=12 : 0.00000000208767569878680989792100903212014323125434236545347656458767569878680989792100903212014323125 n=13 : 0.00000000016059043836821614599392377170154947932725710503488281266059043836821614599392377170154947932 n=14 : 0.00000000001147074559772972471385169797868210566623265035963448661861360274058686757099455512153924852 n=15 : 0.00000000000076471637318198164759011319857880704441551002397563244124090684937245783806630367476928323 n=16 : 0.00000000000004779477332387385297438207491117544027596937649847702757755667808577861487914397967308020 n=17 : 0.00000000000000281145725434552076319894558301032001623349273520453103397392224033991852230258703959295 n=18 : 0.00000000000000015619206968586226462216364350057333423519404084469616855410679112999547346125483553294 n=19 : 0.00000000000000000822063524662432971695598123687228074922073899182611413442667321736818281375025450173 n=20 : 0.00000000000000000041103176233121648584779906184361403746103694959130570672133366086840914068751272508 n=21 : 0.00000000000000000001957294106339126123084757437350543035528747379006217651053969813659091146131012976 n=22 : 0.00000000000000000000088967913924505732867488974425024683433124880863918984138816809711776870278682408 n=23 : 0.00000000000000000000003868170170630684037716911931522812323179342646257347136470296074425081316464452 n=24 : 0.00000000000000000000000161173757109611834904871330480117180132472610260722797352929003101045054852685 n=25 : 0.00000000000000000000000006446950284384473396194853219204687205298904410428911894117160124041802194107 n=26 : 0.00000000000000000000000000247959626322479746007494354584795661742265554247265842081429235540069315157 n=27 : 0.00000000000000000000000000009183689863795546148425716836473913397861687194343179336349230945928493153 n=28 : 0.00000000000000000000000000000327988923706983791015204172731211192780774542655113547726758248068874755 n=29 : 0.00000000000000000000000000000011309962886447716931558764576938316992440501470865984404370974071340508 n=30 : 0.00000000000000000000000000000000376998762881590564385292152564610566414683382362199480145699135711350 n=31 : 0.00000000000000000000000000000000012161250415535179496299746856922921497247851043941918714377391474559 n=32 : 0.00000000000000000000000000000000000380039075485474359259367089278841296788995345123184959824293483579 n=33 : 0.00000000000000000000000000000000000011516335620771950280586881493298221114818040761308635146190711623 n=34 : 0.00000000000000000000000000000000000000338715753552116184723143573332300621024060022391430445476197400 n=35 : 0.00000000000000000000000000000000000000009677592958631890992089816380922874886401714925469441299319925 n=36 : 0.00000000000000000000000000000000000000000268822026628663638669161566136746524622269859040817813869997 n=37 : 0.00000000000000000000000000000000000000000007265460179153071315382745030722879043845131325427508482972 n=38 : 0.00000000000000000000000000000000000000000000191196320504028192510072237650602080101187666458618644288 n=39 : 0.00000000000000000000000000000000000000000000004902469756513543397694159939759027694902247857913298571 n=40 : 0.00000000000000000000000000000000000000000000000122561743912838584942353998493975692372556196447832464 n=41 : 0.00000000000000000000000000000000000000000000000002989310827142404510789121914487212009086736498727621 n=42 : 0.00000000000000000000000000000000000000000000000000071174067312914393114026712249695524025874678541133 n=43 : 0.00000000000000000000000000000000000000000000000000001655210867742195188698295633713849395950573919561 n=44 : 0.00000000000000000000000000000000000000000000000000000037618428812322617924961264402587486271603952717 n=45 : 0.00000000000000000000000000000000000000000000000000000000835965084718280398332472542279721917146754504 n=46 : 0.00000000000000000000000000000000000000000000000000000000018173154015614791268097229179993954720581619 n=47 : 0.00000000000000000000000000000000000000000000000000000000000386662851396059388682919769787105419586842 n=48 : 0.00000000000000000000000000000000000000000000000000000000000008055476070751237264227495203898029574725 n=49 : 0.00000000000000000000000000000000000000000000000000000000000000164397470831657903351581534773429174994 n=50 : 0.00000000000000000000000000000000000000000000000000000000000000003287949416633158067031630695468583499 n=51 : 0.00000000000000000000000000000000000000000000000000000000000000000064469596404571726804541778342521245 n=52 : 0.00000000000000000000000000000000000000000000000000000000000000000001239799930857148592395034198894639 n=53 : 0.00000000000000000000000000000000000000000000000000000000000000000000023392451525606577215000645262163 n=54 : 0.00000000000000000000000000000000000000000000000000000000000000000000000433193546770492170648160097447 n=55 : 0.00000000000000000000000000000000000000000000000000000000000000000000000007876246304918039466330183589 n=56 : 0.00000000000000000000000000000000000000000000000000000000000000000000000000140647255444964990470181849 n=57 : 0.00000000000000000000000000000000000000000000000000000000000000000000000000002467495709560789306494418 n=58 : 0.00000000000000000000000000000000000000000000000000000000000000000000000000000042543029475186022525765 n=59 : 0.00000000000000000000000000000000000000000000000000000000000000000000000000000000721068296189593602131 n=60 : 0.00000000000000000000000000000000000000000000000000000000000000000000000000000000012017804936493226702 n=61 : 0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000197013195680216831 n=62 : 0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000003177632188390594 n=63 : 0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000050438606164930 n=64 : 0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000788103221327 n=65 : 0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000012124664943 n=66 : 0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000183707044 n=67 : 0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002741896 n=68 : 0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000040322 n=69 : 0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000584 n=70 : 0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000008 -------------------------------------------------------------------------------------------------------------- Answer:2.71828182845904523536028747135266249775724709369995957496696762772407663035354759457138217852516642708