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A166309 as a triangular array

1
32
468
57911
1621101214
192429131517
22273237421820
2530354045505523
283338434853586326
31364146515661667176
3439444954596469747984
9711047525762

A166309 as a square array

13451619222528313497
26721242730333639110
891029323538414447
111213374043464952
1415424548515457
17185053565962
2055586164
23636669
267174
7679
84
13451619222528313497
26721242730333639110
891029323538414447
111213374043464952
1415424548515457
17185053565962
2055586164
23636669
267174
7679
84