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A305109 as a triangular array

1
01
222
1530186
23249240014424
5335124501145052401200120
1754164396984477442376126967210800720
784766520851502229933481365330447243289567601058405040
460083056128325719215097679209790729283832508809296121613700928112896040320
3429563258799690153120123801126966862445904123718153000810307520792184270096820563027213063680362880
31715722328609554655641770124248847907809188854250660428450519760013184576969602718373305603718919304032419987201632960003628800

A305109 as a square array

1021523253351754167847665460083056342956325873171572232860
123049212450439698208515021283257192996901531209554655641770
2184001145044774422993348150976792012380112696612424884790780
6144524023761213653304979072928862445904129188854250660
241200696724724328383250880371815300084284505197600
1201080095676092961216103075207921318457696960
720105840137009281842700968271837330560
5040112896020563027237189193040
40320130636803241998720
362880163296000
3628800
1021523253351754167847665460083056342956325873171572232860
123049212450439698208515021283257192996901531209554655641770
2184001145044774422993348150976792012380112696612424884790780
6144524023761213653304979072928862445904129188854250660
241200696724724328383250880371815300084284505197600
1201080095676092961216103075207921318457696960
720105840137009281842700968271837330560
5040112896020563027237189193040
40320130636803241998720
362880163296000
3628800