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A165257 as a triangular array

1
23
3610
4102035
5153570126
62156126252462
728842104629241716
836120330792171634326435
9451654951287300364351287024310

A165257 as a square array

123456789
36101521283645
1020355684120165
3570126210330495
1262524627921287
46292417163003
171634326435
643512870
24310
123456789
36101521283645
1020355684120165
3570126210330495
1262524627921287
46292417163003
171634326435
643512870
24310