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A073474 as a triangular array

1
21
562
1633246
6519622812024
326130521201740720120
195797862055023160147605040720
1370082201212352305970265440138600403205040
1096017672082356424414657645712803232320143136036288040320

A073474 as a square array

1251665326195713700109601
16331961305978682201767208
2242282120205502123522356424
61201740231603059704146576
24720147602654404571280
12050401386003232320
720403201431360
5040362880
40320
1251665326195713700109601
16331961305978682201767208
2242282120205502123522356424
61201740231603059704146576
24720147602654404571280
12050401386003232320
720403201431360
5040362880
40320