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A172345 as a triangular array

1
11
171
150501
135725503571
1254912999912999925491
1182006627400473196366627400182001
112994933786740017224480052172244800523378674001299491
1927843172246100016269758040364

A172345 as a square array

111111111
1750357254918200129949927843
1502550129999662740033786740017224610001
135712999947319636172244800526269758040364
12549662740017224480052
118200337867400
1129949
1
111111111
1750357254918200129949927843
1502550129999662740033786740017224610001
135712999947319636172244800526269758040364
12549662740017224480052
118200337867400
1129949
1