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A172281 as a triangular array

1
11
111
1221
12321
125421
12610621
1291814621
127233523721
12934635121611
11730841268430711

A172281 as a square array

11111111111
1122222221
123569797
1241018233430
12614356384
1262351126
1272184
12630
117
11
1
11111111111
1122222221
123569797
1241018233430
12614356384
1262351126
1272184
12630
117
11
1