# A121835 Hankel transform of A014307. # Table of n, a(n) for n=0..24 # Computed with jOEIS by Georg Fischer, May 10 2024 0 1 1 1 2 6 3 540 4 1360800 5 154314720000 6 1154953090368000000 7 786615912769073587200000000 8 64289841661815089567953305600000000000 9 803921077736369993656026249310037606400000000000000 10 1910020707461272725945357342701659749847850287104000000000000000000 11 1048273762332408027045299018428270914533605679844053681323376640000000000000000000000 12 158789008891121156408260077700231687429952875627582163208842327571301130462822400000000000000000000000000 13 7817169361150613341102360872206640501334483420913685277836061164441860154578827951614957767884800000000000000000000000000000000 14 145468983524818071548860069114085526460076269888708466417906525485934855376089105870279465026886757675030689926348800000000000000000000000000000000000000 15 1177553219419265706206402530092137776964234091028154933724053291332135290078542965449968848565905795266108433363366295571822699261984768000000000000000000000000000000000000000000000 16 4727944399410349154351317475820254183977249304791698915947795248888187174153473738803759757993661049878651809053615897706156075166245644266055345439233886126080000000000000000000000000000000000000000000000000000 17 10649446554119396257937465907149559024414322891941779546291218259887712064297220829326985688522896448585629621131994332789627327914694990059826215774674163827962497200860492340912770252800000000000000000000000000000000000000000000000000000000000 18 15112011154701705984349878008659030329004495508268850978190686050150143773264970286893828137127008232836116304932000916807935344478741870262946392040468527928906015954311523628908583526790059374522226281743111946240000000000000000000000000000000000000000000000000000000000000000000 19 15075537928231352470422135875447842241394574014873357093335325877201916670378751837929941451846218931231042076016107632259933835223800105529472944104574394241878795840165597835876706249284760851183650797985875303585945294554915996197801716350976000000000000000000000000000000000000000000000000000000000000000000000000000 20 11730539130046185814692601042436470878313446691187591473816112984296405868498718774360438120237660288657173849526130588496558839761977451703225790012944831413850892835264300482862727265094759820898048178110930156766286469578332395307824899892519518794366194318879305545465987072000000000000000000000000000000000000000000000000000000000000000000000000000000000000 21 7858981724860399566768297980530329391835769948334233448920728386051982374124341220301181766245158667542097972442660693463988615605270644192599294941181958769331563176270320585500521876446982863050342065018631763539616666269479887366768540871255173156808221177168585525172227549617362388078301515717582040307073024000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 22 4980875903601239620605858094193377055926008222035158527861067158094705760048212220227081860884518449981430802300392157735253361024013146419069179828573337681012084704490370710444518434186921566158350996835791104117219322300117961247048187897487030658021552119323782013900023948893604710508282791641173561871152389712619078215298575663438557773528301568000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 23 3267273679069309630168052860966380235190246097661650589145331080145681071056351437519813816949134864915259528342120434789455406351370509063838336107427352884930377869236383017999316117570999505226753462633424087214487769438479864942933991982806399788250583968409714101091010133514083400385733626740965027059379939545928053875830101822541770589849575537936526797677869384660583329011320655708160000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 24 2417544106822085559022169543967511279525547267839391003193162616176900224148861446683792603298252237167474437968097494667084293973018623003249614816910554535252047605634764045695832087273181761794137632657379320096677917962427592315567067165822541148148817737981131740445575566289759643740309467155133212291061689390231744387831612474539250069929310289713059460808472626855255767419736582720922131537942487255930699746942052093203683737600000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000