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A188881 as a triangular array

1
11
232
611126
2450706024
120274450510360120
72017643248441042002520720
50401306826264406144704038640201605040
4032010958423624840370453877654432039312018144040320

A188881 as a square array

112624120720504040320
131150274176413068109584
21270450324826264236248
660510441040614403704
24360420047040538776
120252038640544320
72020160393120
5040181440
40320
112624120720504040320
131150274176413068109584
21270450324826264236248
660510441040614403704
24360420047040538776
120252038640544320
72020160393120
5040181440
40320