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A304330 as a triangular array

1
01
0112
0160360
01252504020160
011020529206048001814400
0140925068801264032099792000239500800
0116380468468023063040036324288002179457280043589145600
0165532426535203952428480

A304330 as a square array

100000000
11111111
1260252102040921638065532
360504052920506880468468042653520
20160604800126403202306304003952428480
1814400997920003632428800
23950080021794572800
43589145600
100000000
11111111
1260252102040921638065532
360504052920506880468468042653520
20160604800126403202306304003952428480
1814400997920003632428800
23950080021794572800
43589145600