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A319840 as a triangular array

1
22
343
4664
58885
6101010106
712121212127
81414141414148
9161616161616169
10181818181818181810
1120202020202020202011
12222222

A319840 as a square array

123456789101112
246810121416182022
36810121416182022
4810121416182022
5101214161820
61214161820
714161820
8161820
91820
1020
11
123456789101112
246810121416182022
36810121416182022
4810121416182022
5101214161820
61214161820
714161820
8161820
91820
1020
11