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A180360 as a triangular array

1
11
121
1321
15421
166531
19108521
111141310631
11420222115941
11626363933221141
121364749402714621
123447087897653311451
129588810510387

A180360 as a square array

1111111111111
123569111416212329
124610142026364458
1258132236477088
1351021394987105
12615334089103
13922277687
14111453
14631
1214
15
1
1111111111111
123569111416212329
124610142026364458
1258132236477088
1351021394987105
12615334089103
13922277687
14111453
14631
1214
15
1