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A090802 as a triangular array

1
21
442
812126
1632484824
3280160240240120
6419248096014401440720
12844813443360672010080100805040
25610243584107522688053760806408064040320

A090802 as a square array

1248163264128256
141232801924481024
2124816048013443584
648240960336010752
242401440672026880
12014401008053760
7201008080640
504080640
40320
1248163264128256
141232801924481024
2124816048013443584
648240960336010752
242401440672026880
12014401008053760
7201008080640
504080640
40320