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A172431 as a triangular array

1
12
143
16104
1821205
1103656356
11255120126567
11478220330252848
1161053647157924621209
11813656013652002171679216510

A172431 as a square array

1111111111
24681012141618
31021365578105136
42056120220364560
5351263307151365
6562527922002
7844621716
8120792
9165
10
1111111111
24681012141618
31021365578105136
42056120220364560
5351263307151365
6562527922002
7844621716
8120792
9165
10