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A002024 as a triangular array

1
22
333
4444
55555
666666
7777777
88888888
999999999
10101010101010101010
1111111111111111111111
121212121212121212121212
131313131313

A002024 as a square array

12345678910111213
2345678910111213
345678910111213
45678910111213
5678910111213
678910111213
789101112
89101112
9101112
101112
1112
12
12345678910111213
2345678910111213
345678910111213
45678910111213
5678910111213
678910111213
789101112
89101112
9101112
101112
1112
12