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A217877 as a triangular array

1
21
682
2475206
1208642167224
720120052744882336120
5040196608409601228846081920720
4032037200877085881968306998429160129605040
36288080000000140000003600000120000048000021600010080040320

A217877 as a square array

12624120720504040320362880
187586412005196608372008780000000
22021627444096070858814000000
672882122881968303600000
243364608699841200000
120192029160480000
72012960216000
5040100800
40320
12624120720504040320362880
187586412005196608372008780000000
22021627444096070858814000000
672882122881968303600000
243364608699841200000
120192029160480000
72012960216000
5040100800
40320